19743 + Interview Questions in Mathematics Page 58 InterviewSolution

2851.	Find the HCF of 360, 798 and 1260.
Answer» Find the HCF of 360, 798 and 1260.

Discussion

2852.	Question 100(ii)Construct a frequency distribution table for the following weights (in grams) of 35 mangoes, using the equal class intervals, one of them is 40-45 (45 not included):30, 40, 45, 32, 43, 50, 55, 62, 70, 70, 61, 62, 53, 52, 50, 42, 35, 37,53, 55, 65, 70, 73, 74, 45, 46, 58, 59, 60, 62, 74, 34, 35, 70, 68Which weight group has the highest frequency ?
Answer» Question 100(ii) Construct a frequency distribution table for the following weights (in grams) of 35 mangoes, using the equal class intervals, one of them is 40-45 (45 not included): 30, 40, 45, 32, 43, 50, 55, 62, 70, 70, 61, 62, 53, 52, 50, 42, 35, 37, 53, 55, 65, 70, 73, 74, 45, 46, 58, 59, 60, 62, 74, 34, 35, 70, 68 Which weight group has the highest frequency ?

2852.

Question 100(ii)Construct a frequency distribution table for the following weights (in grams) of 35 mangoes, using the equal class intervals, one of them is 40-45 (45 not included):30, 40, 45, 32, 43, 50, 55, 62, 70, 70, 61, 62, 53, 52, 50, 42, 35, 37,53, 55, 65, 70, 73, 74, 45, 46, 58, 59, 60, 62, 74, 34, 35, 70, 68Which weight group has the highest frequency ?

Answer»

Question 100(ii)

Construct a frequency distribution table for the following weights (in grams) of 35 mangoes, using the equal class intervals, one of them is 40-45 (45 not included):

30, 40, 45, 32, 43, 50, 55, 62, 70, 70, 61, 62, 53, 52, 50, 42, 35, 37,

53, 55, 65, 70, 73, 74, 45, 46, 58, 59, 60, 62, 74, 34, 35, 70, 68

Which weight group has the highest frequency ?

Discussion

2853.	Multiply the expressions (2x+8) and (x - 3)
Answer» Multiply the expressions (2x+8) and (x - 3)

Discussion

2854.

When fresh fish is dried it becomes 12 of its weight. We buy fresh fish for ₹15 per kg We sell dried fish for ₹70 per kg What is the amount of money earned in selling 2 kg of dried fish?

Answer» When fresh fish is dried it becomes

\frac{1}{2}

of its weight.

We buy fresh fish for	₹15 per kg
We sell dried fish for	₹70 per kg

What is the amount of money earned in selling 2 kg of dried fish?

Discussion

2855.	Data collected in a survey shows that 40% of the buyers are interested in buying a particular brand of toothpaste. The central angle of the part of the pie chart representing this information is
Answer» Data collected in a survey shows that $40 %$ of the buyers are interested in buying a particular brand of toothpaste. The central angle of the part of the pie chart representing this information is

Discussion

2856.	If the cost of water bottle is decreased from Rs 15 to Rs 12 then the percentage decrease is:
Answer» If the cost of water bottle is decreased from Rs 15 to Rs 12 then the percentage decrease is:

2856.

If the cost of water bottle is decreased from Rs 15 to Rs 12 then the percentage decrease is:

Answer»

If the cost of water bottle is decreased from Rs 15 to Rs 12 then the percentage decrease is:

Discussion

2857.	A number is an much greater than 21 as it is less than 71, what is that number
Answer» A number is an much greater than 21 as it is less than 71, what is that number

Discussion

2858.	How to arrange rational number in descending order.
Answer» How to arrange rational number in descending order.

Discussion

2859.	75. A man walks on a straight road from his home to a market 2.5 km away with a speed of 5km/h. Finding the market closed ,he instantly turns and walk back home with a speed of 7.5km/h . The average speed of man over the interval of time 0 to 40 minutes is equal to what ?
Answer» 75. A man walks on a straight road from his home to a market 2.5 km away with a speed of 5km/h. Finding the market closed ,he instantly turns and walk back home with a speed of 7.5km/h . The average speed of man over the interval of time 0 to 40 minutes is equal to what ?

Discussion

2860.	A †an k 10m\ast5m\ast6m is full of water. The amount of water that must be taken out to reduce the water level by 1m is
Answer» A †an k 10m\ast5m\ast6m is full of water. The amount of water that must be taken out to reduce the water level by 1m is

Discussion

2861.	19. 9xsquare-9(a+b)x+(2asquare+5ab+2bsquare)=0 solve by factorisation
Answer» 19. 9xsquare-9(a+b)x+(2asquare+5ab+2bsquare)=0 solve by factorisation

Discussion

2862.	If a=2+3, then a-1a=___________.
Answer» If $a = 2 + \sqrt{3}, then a - \frac{1}{a} =___________.$

Discussion

2863.	88.A man running on a horizontal Road at u km/h finds the rain falling vertically. He increases his speed to 2u km/h and finds that the drops make angle 30^° with the vertical. Find the speed of the rain with respect to the road.
Answer» 88.A man running on a horizontal Road at u km/h finds the rain falling vertically. He increases his speed to 2u km/h and finds that the drops make angle 30^° with the vertical. Find the speed of the rain with respect to the road.

Discussion

2864.	The probability of a man hitting a target in one fire is 16. The number of times at least he must fire at the target in order that his chance of hitting the target at least once will exceed 25 will be 3
Answer» The probability of a man hitting a target in one fire is $\frac{1}{6} .$ The number of times at least he must fire at the target in order that his chance of hitting the target at least once will exceed $\frac{2}{5}$ will be 3

Discussion

2865.	टूटे-फूटे खंडहर, सभ्यता और संस्कृति के इतिहास के साथ-साथ धड़कती ज़िंदगियों के अनछुए समयों का भी दस्तावेज़ होते हैं- इस कथन का भाव स्पष्ट कीजिए।
Answer» टूटे-फूटे खंडहर, सभ्यता और संस्कृति के इतिहास के साथ-साथ धड़कती ज़िंदगियों के अनछुए समयों का भी दस्तावेज़ होते हैं- इस कथन का भाव स्पष्ट कीजिए।

Discussion

2866.	The flying speed (s) of a bird is 3 more than 7 times its body mass (m).The equation representing this relationship is given by:
Answer» The flying speed (s) of a bird is 3 more than 7 times its body mass (m). The equation representing this relationship is given by:

Discussion

2867.	A box has length, breadth and height of 10 cm, 20 cm and 5 cm respectively. The lateral surface area of the box is
Answer» A box has length, breadth and height of $10 c m, 20 c m$ and $5 c m$ respectively. The lateral surface area of the box is

Discussion

2868.	''मैं कहीं जाता हूँ तो 'छूँछे' हाथ नही लौटता'' से क्या तात्पर्य है? लेखक कौशांबी लौटते हुए अपने साथ क्या-क्या लाया?
Answer» ''मैं कहीं जाता हूँ तो 'छूँछे' हाथ नही लौटता'' से क्या तात्पर्य है? लेखक कौशांबी लौटते हुए अपने साथ क्या-क्या लाया?

Discussion

2869.	Mention the absolute term in 3x2 − 6x −8.
Answer» Mention the absolute term in 3x² − 6x −8.

Discussion

2870.	If 6, 8 and c form a Pythagorean triplet, then find the value of c?
Answer» If 6, 8 and c form a Pythagorean triplet, then find the value of c?

Discussion

2871.	A retired person wants to invest an amount of Rs 50,000. His broker recommends investing in the type of bonds 'A' and 'B' yielding 10% and 9% return respectively on the invested amount. He decides to invest at least Rs 20,000 in bond 'A' and at least Rs 10,000 in bond 'B'. He also wants to invest at least as much in bond 'A' as in bond 'B'. Solve this linear programming problem graphically to maximise his returns.
Answer» A retired person wants to invest an amount of Rs 50,000. His broker recommends investing in the type of bonds 'A' and 'B' yielding 10% and 9% return respectively on the invested amount. He decides to invest at least Rs 20,000 in bond 'A' and at least Rs 10,000 in bond 'B'. He also wants to invest at least as much in bond 'A' as in bond 'B'. Solve this linear programming problem graphically to maximise his returns.

Discussion

2872.	The point (−7,0) lies on the:
Answer» The point $(- 7, 0)$ lies on the:

Discussion

2873.	Match the following fractions to make a whole.
Answer» Match the following fractions to make a whole.

Discussion

2874.	The perimeter of a rectangle field is 18 cm; its breadth is 2 cm find the length of the field?
Answer» The perimeter of a rectangle field is 18 cm; its breadth is 2 cm find the length of the field?

Discussion

2875.

Enter the following transactions in Return Outward Book of Modern Furniture House, Udaipur (Rajasthan) assuming CGST 6% and SGST 6% and post it into Ledger:- 2017 Nov. 7 Returned to Sachdeva Furniture Store, Ahmedabad (Gujarat) : 5 Chairs ₹ 2,000 each 1 Table for ₹ 15,000 Less: 10% Trade Discount 22 Returned 8 Chairs to India Furniture House, Jodhpur (Rajasthan) ₹ 1,500 each, being not of specified quality. 24 Returned one Dining Table to Arora & Co., Jaipur (Rajasthan) being not according to sample ₹ 50,000. 28 Allowance claimed from Delhi Furniture Shop, Ahmedabad (Gujarat) on account of mistake in the invoice ₹ 16,000.

Answer» Enter the following transactions in Return Outward Book of Modern Furniture House, Udaipur (Rajasthan) assuming CGST 6% and SGST 6% and post it into Ledger:-

2017
Nov. 7	Returned to Sachdeva Furniture Store, Ahmedabad (Gujarat) :
	5 Chairs ₹ 2,000 each
	1 Table for ₹ 15,000
	Less: 10% Trade Discount
22	Returned 8 Chairs to India Furniture House, Jodhpur (Rajasthan) ₹ 1,500 each, being not of specified quality.
24	Returned one Dining Table to Arora & Co., Jaipur (Rajasthan) being not according to sample ₹ 50,000.
28	Allowance claimed from Delhi Furniture Shop, Ahmedabad (Gujarat) on account of mistake in the invoice ₹ 16,000.

Discussion

2876.	At the end of the year2008, the age of priya's grandfather is three times the age of priya. If the sum of the years in which they were born is 3928, then the age of priya at the end of the year 2015 will be
Answer» At the end of the year2008, the age of priya's grandfather is three times the age of priya. If the sum of the years in which they were born is 3928, then the age of priya at the end of the year 2015 will be

Discussion

2877.	What should be added to x2+xy+y2 to obtain 2x2+3xy?
Answer» What should be added to $x^{2} + x y + y^{2}$ to obtain $2 x^{2} + 3 x y$ ?

Discussion

2878.	The mean of 5 observatons x+3,x+5,x+7,x+9,x+11 is 14. Find the value of x.
Answer» The mean of 5 observatons $x + 3, x + 5, x + 7, x + 9, x + 11$ is 14. Find the value of x.

Discussion

2879.	State at least two differences between line and line segment? [2 MARKS]
Answer» State at least two differences between line and line segment? [2 MARKS]

Discussion

2880.	What must be added to xy+3x−2y to get 7x+5y ?
Answer» What must be added to $x y + 3 x - 2 y$ to get $7 x + 5 y$ ?

Discussion

2881.	In ΔABC, if AB = BC and ∠B=120∘, then find the other pair of angles.
Answer» In $Δ A B C$ , if AB = BC and $∠ B = 120^{\circ}$ , then find the other pair of angles.

Discussion

2882.	Express the given decimal 5.25 into fraction ?
Answer» Express the given decimal $5.25$ into fraction ?

Discussion

2883.	what are laws os exponents for real numbers?
Answer» what are laws os exponents for real numbers?

Discussion

2884.	In the following figure, the relation between the angles 1, 2 and 3 is:
Answer» In the following figure, the relation between the angles 1, 2 and 3 is:

2884.

In the following figure, the relation between the angles 1, 2 and 3 is:

Answer»

In the following figure, the relation between the angles 1, 2 and 3 is:

Discussion

2885.	Find the product of(a) 6a × 4a(b) 5x × 7y(c) 4m2n × 6mn(d) 3p × 2q × 2r(e) 5x2y × 4x3y2 × 2z
Answer» Find the product of (a) 6a × 4a (b) 5x × 7y (c) 4m²n × 6mn (d) 3p × 2q × 2r (e) 5x²y × 4x³y² × 2z

2885.

Find the product of(a) 6a × 4a(b) 5x × 7y(c) 4m2n × 6mn(d) 3p × 2q × 2r(e) 5x2y × 4x3y2 × 2z

Answer»

Find the product of

(a) 6a × 4a

(b) 5x × 7y

(c) 4m²n × 6mn

(d) 3p × 2q × 2r

(e) 5x²y × 4x³y² × 2z

Discussion

2886.	Which of the rational numbers 4−3, 5−6, 7−18, 2−12 is the smallest?
Answer» Which of the rational numbers $\frac{4}{- 3}$ , $\frac{5}{- 6}$ , $\frac{7}{- 18}$ , $\frac{2}{- 12}$ is the smallest?

Discussion

2887.	'विस्थापन की समस्या' पर एक अनुच्छेद लिखिए।
Answer» 'विस्थापन की समस्या' पर एक अनुच्छेद लिखिए।

Discussion

2888.	Given below is a list of statements explaining the symmetry of letters from A-Z. Choose the correct option with reference to these statements.Statement 1: All letters are symmetrical.Statement 2: All letters have vertical line of symmetry.Statement 3: All letters have horizontal line of symmetry.Statement 4: All letters are asymmetrical.
Answer» Given below is a list of statements explaining the symmetry of letters from A-Z. Choose the correct option with reference to these statements. Statement 1: All letters are symmetrical. Statement 2: All letters have vertical line of symmetry. Statement 3: All letters have horizontal line of symmetry. Statement 4: All letters are asymmetrical.

2888.

Given below is a list of statements explaining the symmetry of letters from A-Z. Choose the correct option with reference to these statements.Statement 1: All letters are symmetrical.Statement 2: All letters have vertical line of symmetry.Statement 3: All letters have horizontal line of symmetry.Statement 4: All letters are asymmetrical.

Answer»

Given below is a list of statements explaining the symmetry of letters from A-Z. Choose the correct option with reference to these statements.

Statement 1: All letters are symmetrical.

Statement 2: All letters have vertical line of symmetry.

Statement 3: All letters have horizontal line of symmetry.

Statement 4: All letters are asymmetrical.

Discussion

2889.	The solution of the equation 3x + 4 = 25 is
Answer» The solution of the equation 3x + 4 = 25 is

Discussion

2890.	Ratio of 2 m to 4 km is:
Answer» Ratio of 2 m to 4 km is:

Discussion

2891.	Make a table of values for the function P = 4a, where P is the perimeter and a is the side of the square. [2 MARKS]
Answer» Make a table of values for the function P = 4a, where P is the perimeter and a is the side of the square. [2 MARKS]

Discussion

2892.	Question 79(i) Given, the principal = Rs. 40000, rate of interest = 8% per annum compound annually. Find Interest if period is one year.
Answer» Question 79(i) Given, the principal = Rs. 40000, rate of interest = 8% per annum compound annually. Find Interest if period is one year.

2892.

Question 79(i) Given, the principal = Rs. 40000, rate of interest = 8% per annum compound annually. Find Interest if period is one year.

Answer»

Question 79(i)

Given, the principal = Rs. 40000, rate of interest = 8% per annum compound annually. Find Interest if period is one year.

Discussion

2893.	Write the answers to the following questions with reference in the given figure . (i) Write the name of the opposite ray of ray RP.(ii) Write the intersection set of ray PQ and ray RP.(iii) Write the union set of ray PQ and ray QR.(iv) State the rays of which seg QR is a subset.(v) Write the pair of opposite rays with common end point R.(vi) Write any two rays with common end point S.(vii) Write the intersection set of ray SP and ray ST.
Answer» Write the answers to the following questions with reference in the given figure . (i) Write the name of the opposite ray of ray RP. (ii) Write the intersection set of ray PQ and ray RP. (iii) Write the union set of ray PQ and ray QR. (iv) State the rays of which seg QR is a subset. (v) Write the pair of opposite rays with common end point R. (vi) Write any two rays with common end point S. (vii) Write the intersection set of ray SP and ray ST.

Discussion

2894.	Simplify : [3 MARKS] 38×45×32×54×7539×44×75
Answer» Simplify : [3 MARKS] $\frac{3^{8} \times 4^{5} \times 3^{2} \times 5^{4} \times 7^{5}}{3^{9} \times 4^{4} \times 7^{5}}$

Discussion

2895.	Question 134From a rope 40m long, pieces of equal size are cut. If the length of one piece is 103m, find the number of such pieces.
Answer» Question 134 From a rope 40m long, pieces of equal size are cut. If the length of one piece is $\frac{10}{3} m$ , find the number of such pieces.

Discussion

2896.	The area of a square plot is 784 m2. The side of the square is
Answer» The area of a square plot is $784 m^{2}$ . The side of the square is

Discussion

2897.	Question 8(i) Verify a - (-b) = a + b for the following values of a and b. a = 21, b = 18
Answer» Question 8(i) Verify a - (-b) = a + b for the following values of a and b. a = 21, b = 18

Discussion

2898.	Why null set is the subset of every set?
Answer» Why null set is the subset of every set?

Discussion

2899.

Question 45The difference between the upper and lower limits of a class interval is called the ___ of the class interval ?

Answer»

Question 45

The difference between the upper and lower limits of a class interval is called the ___ of the class interval ?

Discussion

2900.

Journalise the following transactions in the books of Afzal, Kolkata and post them to the Ledger: 2018 ₹ Jan. 1 Started business with cash* 1,00,000 Jan. 3 Bought goods on credit from Gupta & Co., Delhi 20,000 Jan. 5 Cash sales 5,000 Jan. 8 Cash purchases 8,000 Jan. 10 Sold goods to Ahmed & Co., Lucknow 10,000 Jan. 11 Deposited cash in bank* 50,000 Jan. 13 Purchased a computer for office 20,000 Jan. 15 Took a loan from Mehboob* 70,000 Jan. 16 Goods returned by Ahmed & Co. 2,000 Jan. 17 Purchased furniture from Mehfil Mart, Kolkata 10,000 Jan. 18 Paid interest to Mehboob* 2,000 Jan. 19 Received claim from Ahmed & Co. for defects in goods supplied to them. Claim was accepted and rebate was allowed.* 1,000 Jan. 22 Paid rent by cheque 2,000 Jan. 24 Withdrew from bank* 20,000 Jan. 25 Sales of goods at counter after allowing trade discount of 10% 10,000 Jan. 26 Goods purchased from Gupta & Co., Delhi were destroyed by accident 10,000 Jan. 27 Advertisement expenses paid through bank 5,000 Jan. 28 Ahmed & Co. settled their account by cheque* 7,000 Jan. 29 Paid to Gupta & Co. by cheque* 18,000 Discount allowed by them* 2,000 Jan. 31 Sold old newspapers 500 Intra-state transactions are subject to levy of CGST and SGST 6% each whereas inter-state transactions are subject to levy of IGST 12%. Out of the above transactions, transactions marked (*) are not subject to levy of GST.

Answer» Journalise the following transactions in the books of Afzal, Kolkata and post them to the Ledger:

2018		₹
Jan. 1	Started business with cash*	1,00,000
Jan. 3	Bought goods on credit from Gupta & Co., Delhi	20,000
Jan. 5	Cash sales	5,000
Jan. 8	Cash purchases	8,000
Jan. 10	Sold goods to Ahmed & Co., Lucknow	10,000
Jan. 11	Deposited cash in bank*	50,000
Jan. 13	Purchased a computer for office	20,000
Jan. 15	Took a loan from Mehboob*	70,000
Jan. 16	Goods returned by Ahmed & Co.	2,000
Jan. 17	Purchased furniture from Mehfil Mart, Kolkata	10,000
Jan. 18	Paid interest to Mehboob*	2,000
Jan. 19	Received claim from Ahmed & Co. for defects in goods supplied to them. Claim was accepted and rebate was allowed.*	1,000
Jan. 22	Paid rent by cheque	2,000
Jan. 24	Withdrew from bank*	20,000
Jan. 25	Sales of goods at counter after allowing trade discount of 10%	10,000
Jan. 26	Goods purchased from Gupta & Co., Delhi were destroyed by accident	10,000
Jan. 27	Advertisement expenses paid through bank	5,000
Jan. 28	Ahmed & Co. settled their account by cheque*	7,000
Jan. 29	Paid to Gupta & Co. by cheque*	18,000
	Discount allowed by them*	2,000
Jan. 31	Sold old newspapers	500

Intra-state transactions are subject to levy of CGST and SGST 6% each whereas inter-state transactions are subject to levy of IGST 12%. Out of the above transactions, transactions marked (*) are not subject to levy of GST.

Discussion

Explore topic-wise InterviewSolutions in .

Find the HCF of 360, 798 and 1260.

Multiply the expressions (2x+8) and (x - 3)

When fresh fish is dried it becomes 12 of its weight. We buy fresh fish for ₹15 per kg We sell dried fish for ₹70 per kg What is the amount of money earned in selling 2 kg of dried fish?

Data collected in a survey shows that 40% of the buyers are interested in buying a particular brand of toothpaste. The central angle of the part of the pie chart representing this information is

If the cost of water bottle is decreased from Rs 15 to Rs 12 then the percentage decrease is:

A number is an much greater than 21 as it is less than 71, what is that number

How to arrange rational number in descending order.

75. A man walks on a straight road from his home to a market 2.5 km away with a speed of 5km/h. Finding the market closed ,he instantly turns and walk back home with a speed of 7.5km/h . The average speed of man over the interval of time 0 to 40 minutes is equal to what ?

A †an k 10m\ast5m\ast6m is full of water. The amount of water that must be taken out to reduce the water level by 1m is

19. 9xsquare-9(a+b)x+(2asquare+5ab+2bsquare)=0 solve by factorisation

If a=2+3, then a-1a=___________.

88.A man running on a horizontal Road at u km/h finds the rain falling vertically. He increases his speed to 2u km/h and finds that the drops make angle 30^° with the vertical. Find the speed of the rain with respect to the road.

The probability of a man hitting a target in one fire is 16. The number of times at least he must fire at the target in order that his chance of hitting the target at least once will exceed 25 will be 3

The flying speed (s) of a bird is 3 more than 7 times its body mass (m).The equation representing this relationship is given by:

A box has length, breadth and height of 10 cm, 20 cm and 5 cm respectively. The lateral surface area of the box is

''मैं कहीं जाता हूँ तो 'छूँछे' हाथ नही लौटता'' से क्या तात्पर्य है? लेखक कौशांबी लौटते हुए अपने साथ क्या-क्या लाया?

Mention the absolute term in 3x2 − 6x −8.

If 6, 8 and c form a Pythagorean triplet, then find the value of c?

The point (−7,0) lies on the:

Match the following fractions to make a whole.

The perimeter of a rectangle field is 18 cm; its breadth is 2 cm find the length of the field?

At the end of the year2008, the age of priya's grandfather is three times the age of priya. If the sum of the years in which they were born is 3928, then the age of priya at the end of the year 2015 will be

What should be added to x2+xy+y2 to obtain 2x2+3xy?

The mean of 5 observatons x+3,x+5,x+7,x+9,x+11 is 14. Find the value of x.

State at least two differences between line and line segment? [2 MARKS]

What must be added to xy+3x−2y to get 7x+5y ?

In ΔABC, if AB = BC and ∠B=120∘, then find the other pair of angles.

Express the given decimal 5.25 into fraction ?

what are laws os exponents for real numbers?

In the following figure, the relation between the angles 1, 2 and 3 is:

Find the product of(a) 6a × 4a(b) 5x × 7y(c) 4m2n × 6mn(d) 3p × 2q × 2r(e) 5x2y × 4x3y2 × 2z

Which of the rational numbers 4−3, 5−6, 7−18, 2−12 is the smallest?

'विस्थापन की समस्या' पर एक अनुच्छेद लिखिए।

The solution of the equation 3x + 4 = 25 is

Ratio of 2 m to 4 km is:

Make a table of values for the function P = 4a, where P is the perimeter and a is the side of the square. [2 MARKS]

Question 79(i) Given, the principal = Rs. 40000, rate of interest = 8% per annum compound annually. Find Interest if period is one year.

Simplify : [3 MARKS] 38×45×32×54×7539×44×75

Question 134From a rope 40m long, pieces of equal size are cut. If the length of one piece is 103m, find the number of such pieces.

The area of a square plot is 784 m2. The side of the square is

Question 8(i) Verify a - (-b) = a + b for the following values of a and b. a = 21, b = 18

Why null set is the subset of every set?

Question 45The difference between the upper and lower limits of a class interval is called the ___ of the class interval ?