19743 + Interview Questions in Mathematics Page 242 InterviewSolution

12051.	If 4c + 5 = 25, find the value of 'c' using trial and error method.
Answer» If 4c + 5 = 25, find the value of 'c' using trial and error method.

Discussion

12052.	Given below are the exercise hours for 10 students:If the above data is represented by the following line plot, then select the time (in h) that is incorrectly represented.
Answer» Given below are the exercise hours for 10 students: If the above data is represented by the following line plot, then select the time (in h) that is incorrectly represented.

Discussion

12053.	Corresponding angels
Answer» Corresponding angels

Discussion

12054.	The angles of a triangle are arranged in descending order of their magnitudes. If the difference between two consecutive angles is 10∘, find the three angles.
Answer» The angles of a triangle are arranged in descending order of their magnitudes. If the difference between two consecutive angles is $10^{\circ}$ , find the three angles.

Discussion

12055.	The base of the triangle is (4ab+6) m and height is (6b2+2ab) m. Find the area of the triangle.
Answer» The base of the triangle is $(4 a b + 6)$ m and height is $(6 b^{2} + 2 a b)$ m. Find the area of the triangle.

Discussion

12056.	Jimmy bought 50 candies for $684. Find the cost of each candy.
Answer» Jimmy bought $50$ candies for $$ 684$ . Find the cost of each candy.

Discussion

12057.	0.8 as a percentage is ___
Answer» 0.8 as a percentage is ___

Discussion

12058.	37. What are the properties of collide
Answer» 37. What are the properties of collide

Discussion

12059.	Can there be a pair of complementary angles such that both of them are equal? If yes, find the values of those angles.
Answer» Can there be a pair of complementary angles such that both of them are equal? If yes, find the values of those angles.

Discussion

12060.	The value of 3×(5)13×7×(10)13×5×(20)13
Answer» The value of $3 \times (5)^{\frac{1}{3}} \times 7 \times (10)^{\frac{1}{3}} \times 5 \times (20)^{\frac{1}{3}}$

Discussion

12061.	Match the following with the result of their multiplication.
Answer» Match the following with the result of their multiplication.

Discussion

12062.	The ________ angles of a parallelogram are equal.
Answer» The ________ angles of a parallelogram are equal.

Discussion

12063.	Question 52Three times a number is 200% increase in the number, then one-third of the same number is 200% decrease in the number.
Answer» Question 52 Three times a number is 200% increase in the number, then one-third of the same number is 200% decrease in the number.

12063.

Question 52Three times a number is 200% increase in the number, then one-third of the same number is 200% decrease in the number.

Answer»

Question 52

Three times a number is 200% increase in the number, then one-third of the same number is 200% decrease in the number.

Discussion

12064.	In figure given below, find the value of ∠1 + ∠2.
Answer» In figure given below, find the value of $∠$ 1 + $∠$ 2.

12064.

In figure given below, find the value of ∠1 + ∠2.

Answer»

In figure given below, find the value of $∠$ 1 + $∠$ 2.

Discussion

12065.	The sides BC, CA and AB of ΔABC are produced in order to form exterior angles ∠ACD , ∠EAB, and ∠CBF. Find ∠ACD+∠CBF+∠EAB.
Answer» The sides BC, CA and AB of $Δ A B C$ are produced in order to form exterior angles $∠ A C D$ , $∠ E A B$ , and $∠ C B F$ . Find $∠ A C D + ∠ C B F + ∠ E A B$ .

12065.

The sides BC, CA and AB of ΔABC are produced in order to form exterior angles ∠ACD , ∠EAB, and ∠CBF. Find ∠ACD+∠CBF+∠EAB.

Answer»

The sides BC, CA and AB of $Δ A B C$ are produced in order to form exterior angles $∠ A C D$ , $∠ E A B$ , and $∠ C B F$ .

Find $∠ A C D + ∠ C B F + ∠ E A B$ .

Discussion

12066.	How to round off a decimal number to the nearest tenth?
Answer» How to round off a decimal number to the nearest tenth?

Discussion

12067.	If 3 kg of jaggery costs ₹15, then find the cost of 5 kg jaggery.25
Answer» If 3 kg of jaggery costs ₹15, then find the cost of 5 kg jaggery. 25

Discussion

12068.	if a perpendicular is drawn from vertex of the right angle of a triangle to hypotenuse then triangles on both side of a perpendicular are similar to the whole tringle and to each oth er.
Answer» if a perpendicular is drawn from vertex of the right angle of a triangle to hypotenuse then triangles on both side of a perpendicular are similar to the whole tringle and to each oth er.

Discussion

12069.	Find the missing number.X303545Y42495663__
Answer» Find the missing number. $\begin{matrix} X & 30 & 35 & 45 Y & 42 & 49 & 56 & 63 \end{matrix}$ __

12069.

Find the missing number.X303545Y42495663__

Answer»

Find the missing number.

$\begin{matrix} X & 30 & 35 & 45 Y & 42 & 49 & 56 & 63 \end{matrix}$

__

Discussion

12070.	Question 56x =12
Answer» Question 5 6x =12

Discussion

12071.	If the first and the nth term of a GP. are a and b, respectively, and if P is theproduct of n terms, prove that P2 = (ab)".
Answer» If the first and the nth term of a GP. are a and b, respectively, and if P is theproduct of n terms, prove that P2 = (ab)".

Discussion

12072.	The sum of two rational numbers is 1324 . If one of the number is 34, then find the other number ?
Answer» The sum of two rational numbers is $\frac{13}{24}$ . If one of the number is $\frac{3}{4}$ , then find the other number ?

Discussion

12073.	Identify the geometrical shape !!
Answer» Identify the geometrical shape !!

Discussion

12074.	When a transversal intersects two parallel lines, then
Answer» When a transversal intersects two parallel lines, then

Discussion

12075.	Please explain this statement(-10)+3=10-3
Answer» Please explain this statement(-10)+3=10-3

Discussion

12076.	let a be a two digit number . if the last two digit of a^2 is 01 , then find the number of possible value of a
Answer» let a be a two digit number . if the last two digit of a^2 is 01 , then find the number of possible value of a

Discussion

12077.	Question 8The sides of a quadrilateral ABCD are 6 cm, 8 cm, 12 cm and 14 cm (taken in order) respectively, and the angle between the first two sides is a right angle. Find its area.
Answer» Question 8 The sides of a quadrilateral ABCD are 6 cm, 8 cm, 12 cm and 14 cm (taken in order) respectively, and the angle between the first two sides is a right angle. Find its area.

Discussion

12078.

Record the following transactions in the Purchases Book of Subhash General Stores, Delhi: 2018 May 1 Bought from M/s. Chunni Lal Mam Raj, Delhi: 100 bags of ITC Wheat Atta ₹530 per bag 50 bags of Rice Basmati ₹500 per bag Less: Trade Discount 10% CGST and SGST 6% each was payable on the purchases May 3 Bought from M/s. Kanodia Oil Mills, Delhi: 40 tins Oil ₹1,500 per tin 20 tins Banaspati Oil ₹900 per tin Less: Trade Discount 5% CGST and SGST 6% each was payable on the purchases May 4 Purchased from M/s. Gupta Bros., Hapur: 25 bags gram ₹480 per bag 40 bags oats ₹25 per bag Less: Trade Discount 5% IGST 12% was payable on the purchases

Answer» Record the following transactions in the Purchases Book of Subhash General Stores, Delhi:


2018
May 1		Bought from M/s. Chunni Lal Mam Raj, Delhi:
		100 bags of ITC Wheat Atta ₹530 per bag
		50 bags of Rice Basmati ₹500 per bag
		Less: Trade Discount 10%
		CGST and SGST 6% each was payable on the purchases
May 3		Bought from M/s. Kanodia Oil Mills, Delhi:
		40 tins Oil ₹1,500 per tin
		20 tins Banaspati Oil ₹900 per tin
		Less: Trade Discount 5%
		CGST and SGST 6% each was payable on the purchases
May 4		Purchased from M/s. Gupta Bros., Hapur:
		25 bags gram ₹480 per bag
		40 bags oats ₹25 per bag
		Less: Trade Discount 5%
		IGST 12% was payable on the purchases

Discussion

12079.	Q25. The sum of the digits of a two digit number is 6. If 18 is subtracted from the number the digits will be reversed in the resultant number find the number.
Answer» Q25. The sum of the digits of a two digit number is 6. If 18 is subtracted from the number the digits will be reversed in the resultant number find the number.

Discussion

12080.	Simplify: 7+7÷7+7×7−7
Answer» Simplify: $7 + 7 \div 7 + 7 \times 7 - 7$

Discussion

12081.	0.12333... can be expressed in rational form as:
Answer» 0.12333... can be expressed in rational form as:

Discussion

12082.	Find the perimeter of the following figure (all measurements are in mm):
Answer» Find the perimeter of the following figure (all measurements are in mm):

12082.

Find the perimeter of the following figure (all measurements are in mm):

Answer»

Find the perimeter of the following figure (all measurements are in mm):

Discussion

12083.	Question 67Choose a letter x, y, z, p etc...., wherever necessary, for the unknown (variable) and write the corresponding expressions for the given statement:If a notebook costs Rs. p and a pencil costs Rs. 3, then the total cost (in Rs. ) of two notebooks and one pencil.
Answer» Question 67 Choose a letter x, y, z, p etc...., wherever necessary, for the unknown (variable) and write the corresponding expressions for the given statement: If a notebook costs Rs. p and a pencil costs Rs. 3, then the total cost (in Rs. ) of two notebooks and one pencil.

12083.

Question 67Choose a letter x, y, z, p etc...., wherever necessary, for the unknown (variable) and write the corresponding expressions for the given statement:If a notebook costs Rs. p and a pencil costs Rs. 3, then the total cost (in Rs. ) of two notebooks and one pencil.

Answer»

Question 67

Choose a letter x, y, z, p etc...., wherever necessary, for the unknown (variable) and write the corresponding expressions for the given statement:

If a notebook costs Rs. p and a pencil costs Rs. 3, then the total cost (in Rs. ) of two notebooks and one pencil.

Discussion

12084.	In the diagram above ∠1 and are a pair of vertical angles, whereas ∠2 and are another set of vertical angles.
Answer» In the diagram above $∠ 1$ and are a pair of vertical angles, whereas $∠ 2$ and are another set of vertical angles.

Discussion

12085.	In the given figure, find the value of ∠ BAC. Given: ΔDEF is equilateral, ∠CBA =40∘, ∠FEC =50∘ and DE is parallel to BC.
Answer» In the given figure, find the value of $∠$ BAC. Given: $Δ$ DEF is equilateral, $∠$ CBA =40 $^{\circ}$ , $∠$ FEC =50 $^{\circ}$ and DE is parallel to BC.

12085.

In the given figure, find the value of ∠ BAC. Given: ΔDEF is equilateral, ∠CBA =40∘, ∠FEC =50∘ and DE is parallel to BC.

Answer»

In the given figure, find the value of $∠$ BAC. Given: $Δ$ DEF is equilateral, $∠$ CBA =40 $^{\circ}$ , $∠$ FEC =50 $^{\circ}$ and DE is parallel to BC.

Discussion

12086.	Fractional numbers consists of natural numbers, whole numbers, integers and fractions itself and rational numbers also includes all these so what is the difference between rational numbers and fractions?
Answer» Fractional numbers consists of natural numbers, whole numbers, integers and fractions itself and rational numbers also includes all these so what is the difference between rational numbers and fractions?

Discussion

12087.	Question 3(i) Express the following numbers in standard form: (i) 5,00,00,000
Answer» Question 3(i) Express the following numbers in standard form: (i) 5,00,00,000

Discussion

12088.	Hoping sold a watch to Ibrahim at 12% gain and Ibrahim sold it to John at a loss of 5%. If John paid Rs. 1330, then find how much did Gopi sold it?
Answer» Hoping sold a watch to Ibrahim at 12% gain and Ibrahim sold it to John at a loss of 5%. If John paid Rs. 1330, then find how much did Gopi sold it?

Discussion

12089.	A student of class VII attempts to make a triangle of dimension 2 cm, 3 cm and 6 cm. He drew the longest side first, thereby generating two vertices of the triangle. He could not get the third vertex. What could be the reason?
Answer» A student of class VII attempts to make a triangle of dimension 2 cm, 3 cm and 6 cm. He drew the longest side first, thereby generating two vertices of the triangle. He could not get the third vertex. What could be the reason?

Discussion

12090.	6x+5=2x+17
Answer» 6x+5=2x+17

Discussion

12091.	20. Ankit bought a pair of shoe at a discount of 30%. If he paid rupees 1250. Find the MRP?
Answer» 20. Ankit bought a pair of shoe at a discount of 30%. If he paid rupees 1250. Find the MRP?

Discussion

12092.	Add the following:(1) (2)(3)(4) (5)
Answer» Add the following: (1) (2) (3) (4) (5)

12092.

Add the following:(1) (2)(3)(4) (5)

Answer»

Add the following:

(1)

(2)

(3)

(4)

(5)

Discussion

12093.	Perimeter of a parallelogram is 150 cm. One of its sides is greater than the other side by 25 cm. Find the lengths of all sides.
Answer» Perimeter of a parallelogram is 150 cm. One of its sides is greater than the other side by 25 cm. Find the lengths of all sides.

Discussion

12094.	Which of the following statements is true? (Rate of interest = R% per annum)
Answer» Which of the following statements is true? (Rate of interest = R% per annum)

Discussion

12095.	Number of significant figures in 0.001520 is:
Answer» Number of significant figures in 0.001520 is:

Discussion

12096.	∠A and ∠B form a linear pair. If m∠A=xo and m∠B=2xo , then the value of x is .
Answer» $∠ A$ and $∠ B$ form a linear pair. If $m ∠ A = x^{o}$ and $m ∠ B = 2 x^{o}$ , then the value of $x$ is .

Discussion

12097.	Question 18The reciprocal of 0 is(a) 1(b) –1(c) 0(d) Not defined
Answer» Question 18 The reciprocal of 0 is (a) 1 (b) –1 (c) 0 (d) Not defined

Discussion

12098.	Question 67 (vi)Look at the shape given below and state if it is a polyhedron using Euler's formula.
Answer» Question 67 (vi) Look at the shape given below and state if it is a polyhedron using Euler's formula.

Discussion

12099.	The ratio number of oranges I havenumber of oranges my friend has is equal to 23 We know that I have x oranges and my friend has 2x−3 oranges. How do we represent this as an equation?
Answer» The ratio $\frac{number of oranges I have}{number of oranges my friend has}$ is equal to $\frac{2}{3}$ We know that I have $x$ oranges and my friend has $2 x - 3$ oranges. How do we represent this as an equation?

Discussion

12100.	The given expression: 2s2+3r+5u2 +10p+6r+7s2, on simplification gives:
Answer» The given expression: 2s²+3r+5u² +10p+6r+7s², on simplification gives:

Discussion

Explore topic-wise InterviewSolutions in .

If 4c + 5 = 25, find the value of 'c' using trial and error method.

Given below are the exercise hours for 10 students:If the above data is represented by the following line plot, then select the time (in h) that is incorrectly represented.

Corresponding angels

The angles of a triangle are arranged in descending order of their magnitudes. If the difference between two consecutive angles is 10∘, find the three angles.

The base of the triangle is (4ab+6) m and height is (6b2+2ab) m. Find the area of the triangle.

Jimmy bought 50 candies for $684. Find the cost of each candy.

0.8 as a percentage is ___

37. What are the properties of collide

Can there be a pair of complementary angles such that both of them are equal? If yes, find the values of those angles.

The value of 3×(5)13×7×(10)13×5×(20)13

Match the following with the result of their multiplication.

The ________ angles of a parallelogram are equal.

Question 52Three times a number is 200% increase in the number, then one-third of the same number is 200% decrease in the number.

In figure given below, find the value of ∠1 + ∠2.

The sides BC, CA and AB of ΔABC are produced in order to form exterior angles ∠ACD , ∠EAB, and ∠CBF. Find ∠ACD+∠CBF+∠EAB.

How to round off a decimal number to the nearest tenth?

If 3 kg of jaggery costs ₹15, then find the cost of 5 kg jaggery.25

if a perpendicular is drawn from vertex of the right angle of a triangle to hypotenuse then triangles on both side of a perpendicular are similar to the whole tringle and to each oth er.

Find the missing number.X303545Y42495663__

Question 56x =12

If the first and the nth term of a GP. are a and b, respectively, and if P is theproduct of n terms, prove that P2 = (ab)".

The sum of two rational numbers is 1324 . If one of the number is 34, then find the other number ?

Identify the geometrical shape !!

When a transversal intersects two parallel lines, then

Please explain this statement(-10)+3=10-3

let a be a two digit number . if the last two digit of a^2 is 01 , then find the number of possible value of a

Question 8The sides of a quadrilateral ABCD are 6 cm, 8 cm, 12 cm and 14 cm (taken in order) respectively, and the angle between the first two sides is a right angle. Find its area.

Q25. The sum of the digits of a two digit number is 6. If 18 is subtracted from the number the digits will be reversed in the resultant number find the number.

Simplify: 7+7÷7+7×7−7

0.12333... can be expressed in rational form as:

Find the perimeter of the following figure (all measurements are in mm):

Question 67Choose a letter x, y, z, p etc...., wherever necessary, for the unknown (variable) and write the corresponding expressions for the given statement:If a notebook costs Rs. p and a pencil costs Rs. 3, then the total cost (in Rs. ) of two notebooks and one pencil.

In the diagram above ∠1 and are a pair of vertical angles, whereas ∠2 and are another set of vertical angles.

In the given figure, find the value of ∠ BAC. Given: ΔDEF is equilateral, ∠CBA =40∘, ∠FEC =50∘ and DE is parallel to BC.

Fractional numbers consists of natural numbers, whole numbers, integers and fractions itself and rational numbers also includes all these so what is the difference between rational numbers and fractions?

Question 3(i) Express the following numbers in standard form: (i) 5,00,00,000

Hoping sold a watch to Ibrahim at 12% gain and Ibrahim sold it to John at a loss of 5%. If John paid Rs. 1330, then find how much did Gopi sold it?

A student of class VII attempts to make a triangle of dimension 2 cm, 3 cm and 6 cm. He drew the longest side first, thereby generating two vertices of the triangle. He could not get the third vertex. What could be the reason?

6x+5=2x+17

20. Ankit bought a pair of shoe at a discount of 30%. If he paid rupees 1250. Find the MRP?

Add the following:(1) (2)(3)(4) (5)

Perimeter of a parallelogram is 150 cm. One of its sides is greater than the other side by 25 cm. Find the lengths of all sides.

Which of the following statements is true? (Rate of interest = R% per annum)

Number of significant figures in 0.001520 is:

∠A and ∠B form a linear pair. If m∠A=xo and m∠B=2xo , then the value of x is .

Question 18The reciprocal of 0 is(a) 1(b) –1(c) 0(d) Not defined

Question 67 (vi)Look at the shape given below and state if it is a polyhedron using Euler's formula.​​​​​​​

The ratio number of oranges I havenumber of oranges my friend has is equal to 23 We know that I have x oranges and my friend has 2x−3 oranges. How do we represent this as an equation?

The given expression: 2s2+3r+5u2 +10p+6r+7s2, on simplification gives:

Question 67 (vi)Look at the shape given below and state if it is a polyhedron using Euler's formula.