25365 + Interview Questions in Mathematics Page 147 InterviewSolution

7301.	What is the value of (6)4(3)4 after simplification?
Answer» What is the value of $\frac{(6)^{4}}{(3)^{4}}$ after simplification?

Discussion

7302.	Question 6(iv) A courier-person cycles from a town to a neighbouring suburban area to deliver a parcel to a merchant. His distance from the town at different times is shown by the following graph Did the person stop on his way? Explain.
Answer» Question 6(iv) A courier-person cycles from a town to a neighbouring suburban area to deliver a parcel to a merchant. His distance from the town at different times is shown by the following graph Did the person stop on his way? Explain.

Discussion

7303.	Find Q in the addition 3 1 Q+ 1 Q 3 5 0 1
Answer» Find Q in the addition $\begin{matrix} 31 Q + 1 Q 3 501 \end{matrix}$

Discussion

7304.	Question 3(iv) Add the following: (iv) l2+m2,m2+n2,n2+l2+2lm+2mn+2nl
Answer» Question 3(iv) Add the following: (iv) $l^{2} + m^{2}, m^{2} + n^{2}, n^{2} + l^{2} + 2 l m + 2 m n + 2 n l$

Discussion

7305.	From 2012 to 2018 (including both) if a year is selected at random, the probability of having 365 days in that year is___.
Answer» From 2012 to 2018 (including both) if a year is selected at random, the probability of having 365 days in that year is___.

Discussion

7306.	Question 64 Draw a prism with its base as a regular hexagon with one of its face facing you. Now draw the top view, front view and side view of this solid.
Answer» Question 64 Draw a prism with its base as a regular hexagon with one of its face facing you. Now draw the top view, front view and side view of this solid.

Discussion

7307.	If an angle of 60° is cut from a half folded square piece of paper, specify the cut out obtained when the paper is unfolded.
Answer» If an angle of $60 °$ is cut from a half folded square piece of paper, specify the cut out obtained when the paper is unfolded.

Discussion

7308.	Question 92 (iv)Factorise the following using the identity a2−b2=(a+b)(a−b).3a2b3−27a4b
Answer» Question 92 (iv) Factorise the following using the identity $a^{2} - b^{2} = (a + b) (a - b) .$ $3 a^{2} b^{3} - 27 a^{4} b$

7308.

Question 92 (iv)Factorise the following using the identity a2−b2=(a+b)(a−b).3a2b3−27a4b

Answer»

Question 92 (iv)

Factorise the following using the identity $a^{2} - b^{2} = (a + b) (a - b) .$

$3 a^{2} b^{3} - 27 a^{4} b$

Discussion

7309.	The following data on the number of girls (to the nearest ten) per thousand boys in different sections of Indian society is given below.SectionNumber of girls per thousand boysScheduled Caste (SC)940Scheduled Tribe (ST)970Non SC/ST920Backward districts950Non-backward districts920Rural930Urban910(i) Represent the information above by a bar graph.(ii) In the classroom discuss, what conclusions can be arrived at from the graph.
Answer» The following data on the number of girls (to the nearest ten) per thousand boys in different sections of Indian society is given below. $\begin{matrix} Section & Number of girls per thousand boys Scheduled Caste (SC) & 940 Scheduled Tribe (ST) & 970 Non SC/ST & 920 Backward districts & 950 Non-backward districts & 920 Rural & 930 Urban & 910 \end{matrix}$ (i) Represent the information above by a bar graph. (ii) In the classroom discuss, what conclusions can be arrived at from the graph.

Discussion

7310.	if sides of a right angled triangle are x+8cm and 5cm with hypotenuse 13cm. Find the value of x and hence find the area
Answer» if sides of a right angled triangle are x+8cm and 5cm with hypotenuse 13cm. Find the value of x and hence find the area

Discussion

7311.	Aman bought a shirt for Rs. 374.50 which includes 7% VAT. Find the list price of the shirt.
Answer» Aman bought a shirt for Rs. 374.50 which includes $7 %$ VAT. Find the list price of the shirt.

Discussion

7312.	Three added to half a number gives 23. What is the number?
Answer» Three added to half a number gives 23. What is the number?

7312.

Three added to half a number gives 23. What is the number?

Answer»

Three added to half a number gives 23. What is the number?

Discussion

7313.	If a + b = 5 and ab = 1 then the value of a^2 + b^2 is
Answer» If a + b = 5 and ab = 1 then the value of a^2 + b^2 is

Discussion

7314.	If the volume of tetrahedron whose (−2,0,−1),(a,2,0),(0,2,−3),(1,2,3) is 1 unit, then the value of a can be
Answer» If the volume of tetrahedron whose $(- 2, 0, - 1), (a, 2, 0), (0, 2, - 3), (1, 2, 3)$ is $1$ unit, then the value of $a$ can be

Discussion

7315.	In the construction of quadrilateral PQRS, with PQ = 3 cm, QR = 4 cm and PS = 5 cm, also, ∠SPQ = 70∘ and ∠PQR = 90∘, which of the sides is to be taken as base and constructed first?
Answer» In the construction of quadrilateral PQRS, with PQ = 3 cm, QR = 4 cm and PS = 5 cm, also, $∠$ SPQ = $70^{\circ}$ and $∠$ PQR = $90^{\circ}$ , which of the sides is to be taken as base and constructed first?

Discussion

7316.	Question 52Find the value of the letters in the following question: B A A+B A A________ 3 A 8
Answer» Question 52 Find the value of the letters in the following question: $B A A + B A A________3 A 8$

7316.

Question 52Find the value of the letters in the following question: B A A+B A A________ 3 A 8

Answer»

Question 52

Find the value of the letters in the following question:

$B A A + B A A________3 A 8$

Discussion

7317.	Rajabhau sold his flat to Vasantrao for ₹ 88,00,000 through an agent. The agent charged 2% commission for both of them. Find how much commission the agent got.
Answer» Rajabhau sold his flat to Vasantrao for ₹ 88,00,000 through an agent. The agent charged 2% commission for both of them. Find how much commission the agent got.

Discussion

7318.	A^x+ B^{y }→ A^y+B^x Then n factor of A is y-x or x-y ?
Answer» A^x+ B^{y }→ A^y+B^x Then n factor of A is y-x or x-y ?

Discussion

7319.	Question 92 (xiv)Factorise the following using the identity a2−b2=(a+b)(a−b).4x29−9y216
Answer» Question 92 (xiv) Factorise the following using the identity $a^{2} - b^{2} = (a + b) (a - b) .$ $\frac{4 x^{2}}{9} - \frac{9 y^{2}}{16}$

7319.

Question 92 (xiv)Factorise the following using the identity a2−b2=(a+b)(a−b).4x29−9y216

Answer»

Question 92 (xiv)

Factorise the following using the identity $a^{2} - b^{2} = (a + b) (a - b) .$

$\frac{4 x^{2}}{9} - \frac{9 y^{2}}{16}$

Discussion

7320.	The area of the circular ring included between two concentric circles of radii 3 cm and 2 cm is:
Answer» The area of the circular ring included between two concentric circles of radii 3 cm and 2 cm is:

Discussion

7321.	In a deck of 52 cards, there are 4 kings, 4 queens, 4 jacks . These are known as face cards. If one card from the deck is withdrawn, what is the probability that it is not a face card?
Answer» In a deck of 52 cards, there are 4 kings, 4 queens, 4 jacks . These are known as face cards. If one card from the deck is withdrawn, what is the probability that it is not a face card?

Discussion

7322.	Question 76 In the following question, state whether the statement is True (T) or False (F): abc + bca + cab is a monomial.
Answer» Question 76 In the following question, state whether the statement is True (T) or False (F): abc + bca + cab is a monomial.

7322.

Question 76 In the following question, state whether the statement is True (T) or False (F): abc + bca + cab is a monomial.

Answer»

Question 76

In the following question, state whether the statement is True (T) or False (F):

abc + bca + cab is a monomial.

Discussion

7323.	Simplify: (3x−2y)(3x+4y)−(3x+2y)(3x−2y)(−4y2+6xy)
Answer» Simplify: $\frac{(3 x - 2 y) (3 x + 4 y) - (3 x + 2 y) (3 x - 2 y)}{(- 4 y^{2} + 6 x y)}$

Discussion

7324.

Following balances appear in the books of Priyank Brothers: ₹ 1st April, 2017 Machinery A/c 20,00,000 Provision for Depreciation A/c 8,00,000 On 1st April, 2017, they decide to sell a machine for ₹ 5,00,000. This machine was purchased for ₹ 7,50,000 on 1st April, 2014. Prepare the Machinery Account and Provision for Depreciation Account for the year ended 31st March, 2018 assuming that the firm has been charging Depreciation 10% p.a. on the Straight Line Method.

Answer» Following balances appear in the books of Priyank Brothers:

		₹
1st April, 2017	Machinery A/c	20,00,000
	Provision for Depreciation A/c	8,00,000

On 1st April, 2017, they decide to sell a machine for ₹ 5,00,000. This machine was purchased for ₹ 7,50,000 on 1st April, 2014. Prepare the Machinery Account and Provision for Depreciation Account for the year ended 31st March, 2018 assuming that the firm has been charging Depreciation 10% p.a. on the Straight Line Method.

Discussion

7325.	The diameters of front and rear wheels of a tractor are 80 cm and 2m respectively. Find the number of revolutions that rear wheel will make in covering a distance in which the front wheel makes 1400 revolutions.
Answer» The diameters of front and rear wheels of a tractor are 80 cm and 2m respectively. Find the number of revolutions that rear wheel will make in covering a distance in which the front wheel makes 1400 revolutions.

Discussion

7326.	Vous allez faire des courses à l'épicerie. Rédigez un dialogue entre vous et l'épicier (environ 40 mots).
Answer» Vous allez faire des courses à l'épicerie. Rédigez un dialogue entre vous et l'épicier (environ 40 mots).

Discussion

7327.	Which of the following is a top view of an object?
Answer» Which of the following is a top view of an object?

Discussion

7328.	Factorise: x2−4x−12
Answer» Factorise: $x^{2} - 4 x - 12$

7328.

Factorise: x2−4x−12

Answer»

Factorise:

$x^{2} - 4 x - 12$

Discussion

7329.	2(−4)=1a then a = ____, select the correct option:
Answer» $2^{(- 4)} = \frac{1}{a}$ then a = ____, select the correct option:

Discussion

7330.	Evaluate: √1183√2023
Answer» Evaluate: $\frac{\sqrt{1183}}{\sqrt{2023}}$

Discussion

7331.	Find the distance between A(-1,2) and B(3,4)
Answer» Find the distance between A(-1,2) and B(3,4)

Discussion

7332.	Find the factors of the polynomials given below.(i) 2x2 + x – 1(ii) 2m2 + 5m – 3(iii) 12x2 + 61x + 77(iv) 3y2 – 2y – 1(v) 3x2+4x+3(vi) 12x2-3x+4
Answer» Find the factors of the polynomials given below. (i) 2x² + x – 1 (ii) 2m² + 5m – 3 (iii) 12x² + 61x + 77 (iv) 3y² – 2y – 1 (v) $\sqrt{3} x^{2} + 4 x + \sqrt{3}$ (vi) $\frac{1}{2} x^{2} - 3 x + 4$

Discussion

7333.	There is a square park in the society. Rs. ______ is the cost of laying grass in the field at Rs. 10 per m2. The length of each side is 7 m. ___
Answer» There is a square park in the society. Rs. ______ is the cost of laying grass in the field at Rs. 10 per $m^{2}$ . The length of each side is 7 m. ___

Discussion

7334.	In a school auditorium, the number of chairs in a row is the same as the number of rows of chairs. There are 7033 students in the school. If we know that less than 31 chairs were empty, how many chairs were empty after all the students sat down?
Answer» In a school auditorium, the number of chairs in a row is the same as the number of rows of chairs. There are 7033 students in the school. If we know that less than 31 chairs were empty, how many chairs were empty after all the students sat down?

Discussion

7335.	Manoj has to lay tiles on the floor. The size of the room is 9 feet × 12 feet. In the market, there are three kinds of square tiles 1 foot × 1 foot, 2 feet × 2 feet and 3 feet × 3 feet. Which size of tile should he buy for his room, so that he can lay it without cutting?
Answer» Manoj has to lay tiles on the floor. The size of the room is 9 feet × 12 feet. In the market, there are three kinds of square tiles 1 foot × 1 foot, 2 feet × 2 feet and 3 feet × 3 feet. Which size of tile should he buy for his room, so that he can lay it without cutting?

Discussion

7336.

Draw the graphs for the following tables of values, with suitable scales on the axes.(a) Cost of apples Number of apples 1 2 3 4 5 Cost (in Rs) 5 10 15 20 25 (b) Distance travelled by a car Time (in hours) 6 a.m. 7 a.m. 8 a.m. 9 a.m. Distance (in km) 40 80 120 160 (i) How much distance did the car cover during the period 7.30 a.m. to 8 a.m.?(ii) What was the time when the car had covered a distance of 100 km since its start?(c) Interest on deposits for a year: Deposit (in Rs) 1000 2000 3000 4000 5000 Simple interest (in Rs) 80 160 240 320 400 (i) Does the graph pass through the origin?(ii) Use the graph to find the interest on Rs 2500 for a year:(iii) To get an interest of Rs 280 per year, how much money should be deposited?

Answer»

Draw the graphs for the following tables of values, with suitable scales on the axes.

(a) Cost of apples

Number of apples	1	2	3	4	5
Cost (in Rs)	5	10	15	20	25

(b) Distance travelled by a car

Time (in hours)	6 a.m.	7 a.m.	8 a.m.	9 a.m.
Distance (in km)	40	80	120	160

(i) How much distance did the car cover during the period 7.30 a.m. to 8 a.m.?

(ii) What was the time when the car had covered a distance of 100 km since its start?

(c) Interest on deposits for a year:

Deposit (in Rs)	1000	2000	3000	4000	5000
Simple interest (in Rs)	80	160	240	320	400

(i) Does the graph pass through the origin?

(ii) Use the graph to find the interest on Rs 2500 for a year:

(iii) To get an interest of Rs 280 per year, how much money should be deposited?

Discussion

7337.	What must be added to each term of the ratio 2 : 3, so that it becomes equal to 4 : 5?
Answer» What must be added to each term of the ratio 2 : 3, so that it becomes equal to 4 : 5?

Discussion

7338.	The product of two rational numbers is −916. If one of the numbers is −43, what is the other number?
Answer» The product of two rational numbers is $\frac{- 9}{16}$ . If one of the numbers is $\frac{- 4}{3}$ , what is the other number?

Discussion

7339.	Select the following expression(s) which is(are) equal to 16×24.
Answer» Select the following expression(s) which is(are) equal to $16 \times 2^{4} .$

Discussion

7340.	If 813x−5=2437x−9 then 46x−x50 equals to
Answer» If $81^{3 x - 5} = 243^{7 x - 9}$ then $46 x - \frac{x}{50}$ equals to

Discussion

7341.	The floor of a building consists of 3000 tiles which are rhombus shaped and each of its diagonals are 45 cm and 30 cm in length. Find the total cost of polishing the floor, if the cost per m2 is 4.
Answer» The floor of a building consists of 3000 tiles which are rhombus shaped and each of its diagonals are 45 cm and 30 cm in length. Find the total cost of polishing the floor, if the cost per $m^{2}$ is 4.

Discussion

7342.	Andy’s friend Sandy also got his land restructured. In his case, the land was rectangular before. Keeping the same base and same parallels, LandGrabbers restructured it into a parallelogram-shaped land as shown in the figure. Sandy spent Rs. 400 on fencing and Rs. 500 on ploughing earlier. If AE is twice of AD, find the extra amount he has to spent now on fencing and ploughing respectively in terms of ‘x’ and ‘y’.
Answer» Andy’s friend Sandy also got his land restructured. In his case, the land was rectangular before. Keeping the same base and same parallels, LandGrabbers restructured it into a parallelogram-shaped land as shown in the figure. Sandy spent Rs. 400 on fencing and Rs. 500 on ploughing earlier. If AE is twice of AD, find the extra amount he has to spent now on fencing and ploughing respectively in terms of ‘x’ and ‘y’.

7342.

Andy’s friend Sandy also got his land restructured. In his case, the land was rectangular before. Keeping the same base and same parallels, LandGrabbers restructured it into a parallelogram-shaped land as shown in the figure. Sandy spent Rs. 400 on fencing and Rs. 500 on ploughing earlier. If AE is twice of AD, find the extra amount he has to spent now on fencing and ploughing respectively in terms of ‘x’ and ‘y’.

Answer»

Andy’s friend Sandy also got his land restructured. In his case, the land was rectangular before. Keeping the same base and same parallels, LandGrabbers restructured it into a parallelogram-shaped land as shown in the figure. Sandy spent Rs. 400 on fencing and Rs. 500 on ploughing earlier. If AE is twice of AD, find the extra amount he has to spent now on fencing and ploughing respectively in terms of ‘x’ and ‘y’.

Discussion

7343.	4. How many numbers between 200 and 600 are divisible by 14 ? A) 28 B) 29 C) 27 D) None of these
Answer» 4. How many numbers between 200 and 600 are divisible by 14 ? A) 28 B) 29 C) 27 D) None of these

Discussion

7344.	Following are the carparking charges near a railway station up to4 hours Rs 608 hours Rs 10012 hours Rs 14024 hours Rs 180Check if the parkingcharges are in direct proportion to the parking time.
Answer» Following are the car parking charges near a railway station up to 4 hours Rs 60 8 hours Rs 100 12 hours Rs 140 24 hours Rs 180 Check if the parking charges are in direct proportion to the parking time.

7344.

Following are the carparking charges near a railway station up to4 hours Rs 608 hours Rs 10012 hours Rs 14024 hours Rs 180Check if the parkingcharges are in direct proportion to the parking time.

Answer»

Following are the car
parking charges near a railway station up to

4 hours Rs 60

8 hours Rs 100

12 hours Rs 140

24 hours Rs 180

Check if the parking
charges are in direct proportion to the parking time.

Discussion

7345.	Find the square root of 841 without prime factorisation.
Answer» Find the square root of 841 without prime factorisation.

Discussion

7346.	If 5m×53×5−25−5=512, then find m.
Answer» If $\frac{5^{m} \times 5^{3} \times 5^{- 2}}{5^{- 5}} = 5^{12},$ then find m.

Discussion

7347.

Question 53Draw two acute angles and one obtuse angle without using a protractor. Estimate the measures of the angles. Measure them with the help of a protractor and see how much accurate is your estimate?

Answer»

Question 53

Draw two acute angles and one obtuse angle without using a protractor. Estimate the measures of the angles. Measure them with the help of a protractor and see how much accurate is your estimate?

Discussion

7348.	Question 7The runs scored by two teams A and B on the first 60 balls in a cricket match are given below:Number of ballsTeam ATeam B1−6257−121613−188219−2491025−304531−365637−426343−4810449−546855−60210Represent the data of both the teams on the same graph by frequency polygons.
Answer» Question 7 The runs scored by two teams A and B on the first 60 balls in a cricket match are given below: $\begin{matrix} Number of balls & Team A & Team B 1 - 6 & 2 & 5 7 - 12 & 1 & 6 13 - 18 & 8 & 2 19 - 24 & 9 & 10 25 - 30 & 4 & 5 31 - 36 & 5 & 6 37 - 42 & 6 & 3 43 - 48 & 10 & 4 49 - 54 & 6 & 8 55 - 60 & 2 & 10 \end{matrix}$ Represent the data of both the teams on the same graph by frequency polygons.

Discussion

7349.	If 4x2 + y2 = 40 and xy = 6, find 2x + y.
Answer» If 4x² + y² = 40 and xy = 6, find 2x + y.

Discussion

7350.	Compare 7* 10-6 and 129 *10-7
Answer» Compare 7* 10^-6 and 129 *10^-7

Discussion

Explore topic-wise InterviewSolutions in .

What is the value of (6)4(3)4 after simplification?

Question 6(iv) A courier-person cycles from a town to a neighbouring suburban area to deliver a parcel to a merchant. His distance from the town at different times is shown by the following graph Did the person stop on his way? Explain.

Find Q in the addition 3 1 Q+ 1 Q 3 5 0 1

Question 3(iv) Add the following: (iv) l2+m2,m2+n2,n2+l2+2lm+2mn+2nl

From 2012 to 2018 (including both) if a year is selected at random, the probability of having 365 days in that year is___.

Question 64 Draw a prism with its base as a regular hexagon with one of its face facing you. Now draw the top view, front view and side view of this solid.

If an angle of 60° is cut from a half folded square piece of paper, specify the cut out obtained when the paper is unfolded.

Question 92 (iv)Factorise the following using the identity a2−b2=(a+b)(a−b).3a2b3−27a4b

if sides of a right angled triangle are x+8cm and 5cm with hypotenuse 13cm. Find the value of x and hence find the area

Aman bought a shirt for Rs. 374.50 which includes 7% VAT. Find the list price of the shirt.

Three added to half a number gives 23. What is the number?

If a + b = 5 and ab = 1 then the value of a^2 + b^2 is

If the volume of tetrahedron whose (−2,0,−1),(a,2,0),(0,2,−3),(1,2,3) is 1 unit, then the value of a can be

In the construction of quadrilateral PQRS, with PQ = 3 cm, QR = 4 cm and PS = 5 cm, also, ∠SPQ = 70∘ and ∠PQR = 90∘, which of the sides is to be taken as base and constructed first?

Question 52Find the value of the letters in the following question: B A A+B A A________ 3 A 8

Rajabhau sold his flat to Vasantrao for ₹ 88,00,000 through an agent. The agent charged 2% commission for both of them. Find how much commission the agent got.

A^x+ B^{y }→ A^y+B^x Then n factor of A is y-x or x-y ?

Question 92 (xiv)Factorise the following using the identity a2−b2=(a+b)(a−b).4x29−9y216

The area of the circular ring included between two concentric circles of radii 3 cm and 2 cm is:

In a deck of 52 cards, there are 4 kings, 4 queens, 4 jacks . These are known as face cards. If one card from the deck is withdrawn, what is the probability that it is not a face card?

Question 76 In the following question, state whether the statement is True (T) or False (F): abc + bca + cab is a monomial.

Simplify: (3x−2y)(3x+4y)−(3x+2y)(3x−2y)(−4y2+6xy)

The diameters of front and rear wheels of a tractor are 80 cm and 2m respectively. Find the number of revolutions that rear wheel will make in covering a distance in which the front wheel makes 1400 revolutions.

Vous allez faire des courses à l'épicerie. Rédigez un dialogue entre vous et l'épicier (environ 40 mots).

Which of the following is a top view of an object?

Factorise: x2−4x−12

2(−4)=1a then a = ____, select the correct option:

Evaluate: √1183√2023

Find the distance between A(-1,2) and B(3,4)​

Find the factors of the polynomials given below.(i) 2x2 + x – 1(ii) 2m2 + 5m – 3(iii) 12x2 + 61x + 77(iv) 3y2 – 2y – 1(v) 3x2+4x+3(vi) 12x2-3x+4

There is a square park in the society. Rs. ______ is the cost of laying grass in the field at Rs. 10 per m2. The length of each side is 7 m. ___

In a school auditorium, the number of chairs in a row is the same as the number of rows of chairs. There are 7033 students in the school. If we know that less than 31 chairs were empty, how many chairs were empty after all the students sat down?

Manoj has to lay tiles on the floor. The size of the room is 9 feet × 12 feet. In the market, there are three kinds of square tiles 1 foot × 1 foot, 2 feet × 2 feet and 3 feet × 3 feet. Which size of tile should he buy for his room, so that he can lay it without cutting?

What must be added to each term of the ratio 2 : 3, so that it becomes equal to 4 : 5?

The product of two rational numbers is −916. If one of the numbers is −43, what is the other number?

Select the following expression(s) which is(are) equal to 16×24.

If 813x−5=2437x−9 then 46x−x50 equals to

The floor of a building consists of 3000 tiles which are rhombus shaped and each of its diagonals are 45 cm and 30 cm in length. Find the total cost of polishing the floor, if the cost per m2 is 4.

4. How many numbers between 200 and 600 are divisible by 14 ? A) 28 B) 29 C) 27 D) None of these

Following are the carparking charges near a railway station up to4 hours Rs 608 hours Rs 10012 hours Rs 14024 hours Rs 180Check if the parkingcharges are in direct proportion to the parking time.

Find the square root of 841 without prime factorisation.

If 5m×53×5−25−5=512, then find m.

Question 53Draw two acute angles and one obtuse angle without using a protractor. Estimate the measures of the angles. Measure them with the help of a protractor and see how much accurate is your estimate?

Question 7The runs scored by two teams A and B on the first 60 balls in a cricket match are given below:Number of ballsTeam ATeam B1−6257−121613−188219−2491025−304531−365637−426343−4810449−546855−60210Represent the data of both the teams on the same graph by frequency polygons.

If 4x2 + y2 = 40 and xy = 6, find 2x + y.

Compare 7* 10-6 and 129 *10-7

Find the distance between A(-1,2) and B(3,4)

There is a square park in the society. Rs. ____ is the cost of laying grass in the field at Rs. 10 per m2. The length of each side is 7 m. _