25365 + Interview Questions in Mathematics

1.	The perimeter of a rectangular swimming pool is 64 m. If its length and breadth are in the ratio of 5 : 3, then find the length of the pool (in metre).
Answer» The perimeter of a rectangular swimming pool is $64 m$ . If its length and breadth are in the ratio of $5 : 3$ , then find the length of the pool (in metre).

Discussion

2.	Find the product of 5m2n, −3mnp and −5n2p.
Answer» Find the product of $5 m^{2} n, - 3 m n p$ and $- 5 n^{2} p$ .

Discussion

3.	If a diagonal AC of a parallelogram ABCD is of length 6 cm and side AB is of length 4 cm, then the length of side BC will be
Answer» If a diagonal AC of a parallelogram ABCD is of length 6 cm and side AB is of length 4 cm, then the length of side BC will be

Discussion

4.	The total surface area of a hollow cylinder which is open from both sides is 4620 sq.cm, area of the base ring is 115.5 sq.cm and height 7 cm. Find the thickness of the cylinder.
Answer» The total surface area of a hollow cylinder which is open from both sides is $4620 s q . c m$ , area of the base ring is $115.5 s q . c m$ and height $7 c m$ . Find the thickness of the cylinder.

Discussion

5.	A defective briefcase costing Rs. 800 being sold at a loss of 8%. If the price is farther reduced by 5%, find its selling price.
Answer» A defective briefcase costing Rs. 800 being sold at a loss of $8 %$ . If the price is farther reduced by $5 %$ , find its selling price.

Discussion

6.	Please solve: What sum will become Rs 9826 in 18 months at 2.5% per annum compounded half yearly?
Answer» Please solve: What sum will become Rs 9826 in 18 months at 2.5% per annum compounded half yearly?

6.

Please solve: What sum will become Rs 9826 in 18 months at 2.5% per annum compounded half yearly?

Answer»

Please solve:

What sum will become Rs 9826 in 18 months at 2.5% per annum compounded half yearly?

Discussion

7.	A submarine after travelling 100 KM from the Shore, descended 11/10 KM below the sea level. Then it ascended about 3/5 KM. The next day, it again descended by 9/10 KM. What is its current position with respect to sea level? What is the horizontal distance of submarine from the sea shore?
Answer» A submarine after travelling 100 KM from the Shore, descended 11/10 KM below the sea level. Then it ascended about 3/5 KM. The next day, it again descended by 9/10 KM. What is its current position with respect to sea level? What is the horizontal distance of submarine from the sea shore?

Discussion

8.	A and B undertake to do a piece of work for Rs. 200. A alone can do it in 6 days and B in 8 days. With the help of C they finish it in 3 days.The amount of money paid to C is = Rs. ___
Answer» A and B undertake to do a piece of work for Rs. 200. A alone can do it in 6 days and B in 8 days. With the help of C they finish it in 3 days.The amount of money paid to C is = Rs. ___

Discussion

9.	Question 42(i) Write the Y-coordinate (ordinate) of the given point. (3,5)
Answer» Question 42(i) Write the Y-coordinate (ordinate) of the given point. (3,5)

Discussion

10.	Simplify 8(3h−4)+5(h−2).
Answer» Simplify $8 (3 h - 4) + 5 (h - 2)$ .

Discussion

11.	Rekha takes 20 minutes to cover a distance of 3.2 kilometres on a bicycle. Calculate her speed in km/h.
Answer» Rekha takes 20 minutes to cover a distance of 3.2 kilometres on a bicycle. Calculate her speed in km/h.

Discussion

12.	Given below is the height of 20 students in centimeters 150178153156162184170176186173153186162159180183165180150156 Find the number of class intervals in the frequency table if two random class intervals are 180-184 and 185-189
Answer» Given below is the height of 20 students in centimeters $\begin{matrix} 150 & 178 153 & 156 162 & 184 170 & 176 186 & 173 153 & 186 162 & 159 180 & 183 165 & 180 150 & 156 \end{matrix}$ Find the number of class intervals in the frequency table if two random class intervals are 180-184 and 185-189

12.

Given below is the height of 20 students in centimeters 150178153156162184170176186173153186162159180183165180150156 Find the number of class intervals in the frequency table if two random class intervals are 180-184 and 185-189

Answer»

Given below is the height of 20 students in centimeters

$\begin{matrix} 150 & 178 153 & 156 162 & 184 170 & 176 186 & 173 153 & 186 162 & 159 180 & 183 165 & 180 150 & 156 \end{matrix}$

Find the number of class intervals in the frequency table if two random class intervals are 180-184 and 185-189

Discussion

13.	P&Q respectively are midpoints of the sides CA;CB of a right angle triangle ABC right angled at C prove that 1) 4AQ2=4AC2+BC2 2) 4BP2=4BC2+AC2 3) 4(AQ2+BP2)=5AB2
Answer» P&Q respectively are midpoints of the sides CA;CB of a right angle triangle ABC right angled at C prove that 1) $4 A Q^{2} = 4 A C^{2} + B C^{2}$ 2) $4 B P^{2} = 4 B C^{2} + A C^{2}$ 3) $4 (A Q^{2} + B P^{2}) = 5 A B^{2}$

Discussion

14.	The complement of an angle is two-fifths of its supplement.Find the angle.
Answer» The complement of an angle is two-fifths of its supplement.Find the angle.

Discussion

15.	In what time will a sum of ₹ 800 at 5 % p.a CI amount to rupees 882? A. 1 Year B. 5 Year C. 4 Year D. 2 Year
Answer» In what time will a sum of ₹ 800 at 5 % p.a CI amount to rupees 882? A. 1 Year B. 5 Year C. 4 Year D. 2 Year

15.

In what time will a sum of ₹ 800 at 5 % p.a CI amount to rupees 882? A. 1 Year B. 5 Year C. 4 Year D. 2 Year

Answer»

In what time will a sum of ₹ 800 at 5 % p.a CI amount to rupees 882?

A. 1 Year

B. 5 Year

C. 4 Year

D. 2 Year

Discussion

16.	A cement company earns a profit of ₹ 8 per bag of white cement sold and a loss of ₹ 5 per bag of grey cement sold. What is the number of white cement bags it must sell to have neither profit nor loss, if the number of grey bags sold is 6,400 bags?
Answer» A cement company earns a profit of ₹ 8 per bag of white cement sold and a loss of ₹ 5 per bag of grey cement sold. What is the number of white cement bags it must sell to have neither profit nor loss, if the number of grey bags sold is 6,400 bags?

Discussion

17.	Which of the following should be the THIRD sentence after rearrangement?
Answer» Which of the following should be the THIRD sentence after rearrangement?

Discussion

18.	Ravish sold his motorcycle to Vineet at a loss of 28%. Vineet spent Rs. 1680 on its repairs and sold the motorcycle to Rahul for Rs.35910, thereby making a profit of 12.5%, find the cost price of motorcycle for Ravish.
Answer» Ravish sold his motorcycle to Vineet at a loss of 28%. Vineet spent Rs. 1680 on its repairs and sold the motorcycle to Rahul for Rs.35910, thereby making a profit of 12.5%, find the cost price of motorcycle for Ravish.

Discussion

19.	If a pipe can fill the tank in 'a' hours and another pipe can empty the full tank in 'b' hours (where b > a), then on opening both the pipes, the net part filled in 1 hour is
Answer» If a pipe can fill the tank in 'a' hours and another pipe can empty the full tank in 'b' hours (where b > a), then on opening both the pipes, the net part filled in 1 hour is

Discussion

20.	Given, A={Quadrilaterals},B={Rectangles},C={Squares}D={Rhombuses}. State, giving reasons, whether the following are true or false. (i)B ⊂ C(ii)D ⊂ B(iii)C ⊆ B ⊆ A(iv)D ⊂ A(v)B ⊇ C(vi)A ⊇ B ⊇ D
Answer» Given, $A = {Q u a d r i l a t e r a l s}, B = {R e c t a n g l e s}, C = {S q u a r e s} D = {R h o m b u s e s}$ . State, giving reasons, whether the following are true or false. (i) $B \subset C (i i) D \subset B (i i i) C \subseteq B \subseteq A (i v) D \subset A (v) B \supseteq C (v i) A \supseteq B \supseteq D$

Discussion

21.	Find the amount and the C.I. on Rs. 8000 in 112 years at 20% per year compounded half-yearly.
Answer» Find the amount and the $C . I .$ on $R s . 8000$ in $1 \frac{1}{2}$ years at $20 %$ per year compounded half-yearly.

Discussion

22.	ABCDE is a regular pentagon. The bisector of angle A of the pentagon meets the side CD in point M. Show that ∠AMC=90o.
Answer» ABCDE is a regular pentagon. The bisector of angle A of the pentagon meets the side CD in point M. Show that $∠ A M C = 90^{o}$ .

Discussion

23.	Number of zeroes in the number 3.146 × 1020 are______
Answer» Number of zeroes in the number 3.146 × 10²⁰ are______

Discussion

24.	Question 113 From a pipe of inner radius 0.75 cm, water flows at the rate of 7 m per second. Find the volume in litres of water delivered by the piper in 1 h.
Answer» Question 113 From a pipe of inner radius 0.75 cm, water flows at the rate of 7 m per second. Find the volume in litres of water delivered by the piper in 1 h.

24.

Question 113 From a pipe of inner radius 0.75 cm, water flows at the rate of 7 m per second. Find the volume in litres of water delivered by the piper in 1 h.

Answer»

Question 113

From a pipe of inner radius 0.75 cm, water flows at the rate of 7 m per second. Find the volume in litres of water delivered by the piper in 1 h.

Discussion

25.	A man starts his trip from the origin of Cartesian plane. He goes 5 units east, 3 units north and then 10 units west. Find his present location on the Cartesian plane. In which quadrant does he lie?
Answer» A man starts his trip from the origin of Cartesian plane. He goes 5 units east, 3 units north and then 10 units west. Find his present location on the Cartesian plane. In which quadrant does he lie?

Discussion

26.	If a coin is tossed 100 times and the head obtained is 47 times then what will be the probability to get head if the coin is tossed again?
Answer» If a coin is tossed 100 times and the head obtained is 47 times then what will be the probability to get head if the coin is tossed again?

Discussion

27.	Multiply : (i) 8ab2 by −4a3b4(ii) 23ab by −14a2b(iii) −5cd2 by −5cd2(iv) 4a and (6a+7)(v) −8x and (4−2x−x2)(vi) 2a2−5a−4 and −3a.(vii) x+4 by x−5(viii) 5a−1 by 7a−3(ix) 12a+5b by 7a−b(x) x2+x+1 by 1−x(xi)2m2−3m−1 and 4m2−m−1(xii) a2,ab and b2(xiii) abx,−3a2x and 7b2x3(xiv) −3bx,−5xy and −7b3y2(xv) (−32x5y3) and (49a2x3y)(xvi) (−23a7b2) and (−94ab5)(xvii)(2a3−3a2b2) and (−12ab2)(xviii)(2x+12y) and (2x−12y)
Answer» Multiply : $(i) 8 a b^{2} b y - 4 a^{3} b^{4} (i i) \frac{2}{3} a b b y - \frac{1}{4} a^{2} b (i i i) - 5 c d^{2} b y - 5 c d^{2} (i v) 4 a a n d (6 a + 7) (v) - 8 x a n d (4 - 2 x - x^{2}) (v i) 2 a^{2} - 5 a - 4 a n d - 3 a . (v i i) x + 4 b y x - 5 (v i i i) 5 a - 1 b y 7 a - 3 (i x) 12 a + 5 b b y 7 a - b (x) x^{2} + x + 1 b y 1 - x (x i) 2 m^{2} - 3 m - 1 a n d 4 m^{2} - m - 1 (x i i) a^{2}, a b a n d b^{2} (x i i i) a b x, - 3 a^{2} x a n d 7 b^{2} x^{3} (x i v) - 3 b x, - 5 x y a n d - 7 b^{3} y^{2} (x v) (- \frac{3}{2} x^{5} y^{3}) a n d (\frac{4}{9} a^{2} x^{3} y) (x v i) (- \frac{2}{3} a^{7} b^{2}) a n d (- \frac{9}{4} a b^{5}) (x v i i) (2 a^{3} - 3 a^{2} b^{2}) a n d (- \frac{1}{2} a b^{2}) (x v i i i) (2 x + \frac{1}{2} y) a n d (2 x - \frac{1}{2} y)$

27.

Multiply : (i) 8ab2 by −4a3b4(ii) 23ab by −14a2b(iii) −5cd2 by −5cd2(iv) 4a and (6a+7)(v) −8x and (4−2x−x2)(vi) 2a2−5a−4 and −3a.(vii) x+4 by x−5(viii) 5a−1 by 7a−3(ix) 12a+5b by 7a−b(x) x2+x+1 by 1−x(xi)2m2−3m−1 and 4m2−m−1(xii) a2,ab and b2(xiii) abx,−3a2x and 7b2x3(xiv) −3bx,−5xy and −7b3y2(xv) (−32x5y3) and (49a2x3y)(xvi) (−23a7b2) and (−94ab5)(xvii)(2a3−3a2b2) and (−12ab2)(xviii)(2x+12y) and (2x−12y)

Answer»

Multiply :

$(i) 8 a b^{2} b y - 4 a^{3} b^{4} (i i) \frac{2}{3} a b b y - \frac{1}{4} a^{2} b (i i i) - 5 c d^{2} b y - 5 c d^{2} (i v) 4 a a n d (6 a + 7) (v) - 8 x a n d (4 - 2 x - x^{2}) (v i) 2 a^{2} - 5 a - 4 a n d - 3 a . (v i i) x + 4 b y x - 5 (v i i i) 5 a - 1 b y 7 a - 3 (i x) 12 a + 5 b b y 7 a - b (x) x^{2} + x + 1 b y 1 - x (x i) 2 m^{2} - 3 m - 1 a n d 4 m^{2} - m - 1 (x i i) a^{2}, a b a n d b^{2} (x i i i) a b x, - 3 a^{2} x a n d 7 b^{2} x^{3} (x i v) - 3 b x, - 5 x y a n d - 7 b^{3} y^{2} (x v) (- \frac{3}{2} x^{5} y^{3}) a n d (\frac{4}{9} a^{2} x^{3} y) (x v i) (- \frac{2}{3} a^{7} b^{2}) a n d (- \frac{9}{4} a b^{5}) (x v i i) (2 a^{3} - 3 a^{2} b^{2}) a n d (- \frac{1}{2} a b^{2}) (x v i i i) (2 x + \frac{1}{2} y) a n d (2 x - \frac{1}{2} y)$

Discussion

28.	Find the number of possible trapeziums.
Answer» Find the number of possible trapeziums.

28.

Find the number of possible trapeziums.

Answer»

Find the number of possible trapeziums.

Discussion

29.	Vinod sold a watch to Alex at a gain of 12%and Alex had to sell it to Shweta at a loss of5%.If shweta paid Rs.1330 for it, how much did Vinod pay for the watch?
Answer» $Vinod sold a watch to Alex at a gain of 12 % and Alex had to sell it to Shweta at a loss of 5 % . If shweta paid Rs.1330 for it, how much did Vinod pay for the watch?$

Discussion

30.	40+3x−x2=?(a) (x+5)(x−8)(b) (5−x)(8+x)(c) (5+x)(8−x)(d) (5−x)(8−x)
Answer» $40 + 3 x - x^{2} = ? (a) (x + 5) (x - 8) (b) (5 - x) (8 + x) (c) (5 + x) (8 - x) (d) (5 - x) (8 - x)$

Discussion

31.	Question 92 (ix) Factorise the following using the identity a2−b2=(a+b)(a−b). 2p225−32q2
Answer» Question 92 (ix) Factorise the following using the identity $a^{2} - b^{2} = (a + b) (a - b) .$ $\frac{2 p^{2}}{25} - 32 q^{2}$

31.

Question 92 (ix) Factorise the following using the identity a2−b2=(a+b)(a−b). 2p225−32q2

Answer»

Question 92 (ix)

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

$\frac{2 p^{2}}{25} - 32 q^{2}$

Discussion

32.	Factorise: 7x2−19x−6
Answer» Factorise: $7 x^{2} - 19 x - 6$

32.

Factorise: 7x2−19x−6

Answer»

Factorise:

$7 x^{2} - 19 x - 6$

Discussion

33.	Write down steps involved in bar grapgh.
Answer» Write down steps involved in bar grapgh.

Discussion

34.	By selling 90 ball pens for Rs. 160 a person loses 20%. How many ball pens should be sold for Rs. 96 so as to have a profit of 20%?
Answer» By selling 90 ball pens for Rs. 160 a person loses $20 %$ . How many ball pens should be sold for Rs. 96 so as to have a profit of $20 %$ ?

Discussion

35.	Find the smallest number by which 180 must be multiplied so that the product is perfect square.
Answer» Find the smallest number by which 180 must be multiplied so that the product is perfect square.

Discussion

36.	Coefficient of 'b' in the expression 4b2 is ___.
Answer» Coefficient of ' $b$ ' in the expression $4 b^{2}$ is ___.

Discussion

37.	The value of a machine worth ₹5,00,000 depreciates at the rate of 10% every year. In how many years will its value be ₹3,64,500?
Answer» The value of a machine worth ₹5,00,000 depreciates at the rate of 10% every year. In how many years will its value be ₹3,64,500?

Discussion

38.	A line segment AB was divided in the ratio m:n by making a single ray AX. The number of arcs to be drawn on AX in order to divide AB in that ratio is:
Answer» A line segment AB was divided in the ratio m:n by making a single ray AX. The number of arcs to be drawn on AX in order to divide AB in that ratio is:

Discussion

39.	In an objective type paper of 150 questions , John got 80% correct answers and Mohan got 64% correct answers . What percent is Mohan's correct answers to John's correct answers ?
Answer» In an objective type paper of 150 questions , John got 80% correct answers and Mohan got 64% correct answers . What percent is Mohan's correct answers to John's correct answers ?

Discussion

40.	Which of the following are examples of the null set? (i) Set of odd natural numbers divisible by 2. (ii) Set of even prime numbers. (iii) {x : x is a natural number, x < 5 and x > 7} (iv) { y : y is a point common to any two parallel lines}
Answer» Which of the following are examples of the null set? (i) Set of odd natural numbers divisible by 2. (ii) Set of even prime numbers. (iii) {x : x is a natural number, x < 5 and x > 7} (iv) { y : y is a point common to any two parallel lines}

40.

Which of the following are examples of the null set? (i) Set of odd natural numbers divisible by 2. (ii) Set of even prime numbers. (iii) {x : x is a natural number, x < 5 and x > 7} (iv) { y : y is a point common to any two parallel lines}

Answer»

Which of the following are examples of the null set?

(i) Set of odd natural numbers divisible by 2.

(ii) Set of even prime numbers.

(iii) {x : x is a natural number, x < 5 and x > 7}

(iv) { y : y is a point common to any two parallel lines}

Discussion

41.	Hasan buys two kinds of cloth material for school uniforms, shirt material that costs him Rs. 50 per metre and the trouser material costs him Rs. 90 per metre. For every 3 metre of shirt material, he buys 2 metres of the trouser material. He sells the materials at 12% and 10% profit respectively. His total sale is Rs. 36600. How much trouser material did he buy?
Answer» Hasan buys two kinds of cloth material for school uniforms, shirt material that costs him $R s . 50$ per metre and the trouser material costs him $R s . 90$ per metre. For every $3$ metre of shirt material, he buys 2 metres of the trouser material. He sells the materials at $12 %$ and $10 %$ profit respectively. His total sale is $R s . 36600.$ How much trouser material did he buy?

Discussion

42.	When to use simple interest formula in finding compound interest and when to use amount formula in finding compound interest
Answer» When to use simple interest formula in finding compound interest and when to use amount formula in finding compound interest

Discussion

43.	The digit in the tens place of a two-digit number is three times that in the units place. If the digits are reversed,the new number will be 36 less than the original number ,Find the original number.check your solution
Answer» The digit in the tens place of a two-digit number is three times that in the units place. If the digits are reversed,the new number will be 36 less than the original number ,Find the original number.check your solution

Discussion

44.	10lm is one of the factors of 20l2m+30alm. The other factor is:
Answer» $10 l m$ is one of the factors of $20 l^{2} m + 30 a l m$ . The other factor is:

Discussion

45.	The quadrilateral that can be constructed with the minimum number of given measurements is a _______ .
Answer» The quadrilateral that can be constructed with the minimum number of given measurements is a _______ .

Discussion

46.	What is the volume of the cylinder shown below?
Answer» What is the volume of the cylinder shown below?

Discussion

47.	Question 11 The volume of a cube is 64 cm3. Its surface area is (a) 16 cm2 (b) 64 cm2 (c) 96 cm2 (d) 128 cm2
Answer» Question 11 The volume of a cube is $64 c m^{3} .$ Its surface area is (a) $16 c m^{2}$ (b) $64 c m^{2}$ (c) $96 c m^{2}$ (d) $128 c m^{2}$

47.

Question 11 The volume of a cube is 64 cm3. Its surface area is (a) 16 cm2 (b) 64 cm2 (c) 96 cm2 (d) 128 cm2

Answer»

Question 11

The volume of a cube is $64 c m^{3} .$ Its surface area is
(a) $16 c m^{2}$ (b) $64 c m^{2}$
(c) $96 c m^{2}$ (d) $128 c m^{2}$

Discussion

48.	Which of the following pair of algebraic expression will add up to give 12xy - 7?
Answer» Which of the following pair of algebraic expression will add up to give 12xy - 7?

Discussion

49.	Show that 954 - 459 is exactly divisible by 99.
Answer» Show that 954 - 459 is exactly divisible by 99.

Discussion

50.	Directions:- Study the following information carefully to answer the question given below. Twelve persons are sitting in two rows containing six persons each. In row- 1 - A, B, C, D, E and F are sitting facing West but not necessarily in the same order. In row-2 - P, Q, R, S, T and U are sitting facing North but not necessarily in the same order. There is an equal distance between adjacent persons. S sits third to the right of R, S doesn't sit at any extreme. R is not an immediate neighbour of U. Two persons sit between P and Q. T sits third to the left of U. D sits to the left of C, F sits third to the right of D. C doesn't sit at any extreme end. One person sits between B and D. C is not an immediate neighbour of B and A. Who among the followings are at extreme ends of any row?
Answer» Directions:- Study the following information carefully to answer the question given below. Twelve persons are sitting in two rows containing six persons each. In row- 1 - A, B, C, D, E and F are sitting facing West but not necessarily in the same order. In row-2 - P, Q, R, S, T and U are sitting facing North but not necessarily in the same order. There is an equal distance between adjacent persons. S sits third to the right of R, S doesn't sit at any extreme. R is not an immediate neighbour of U. Two persons sit between P and Q. T sits third to the left of U. D sits to the left of C, F sits third to the right of D. C doesn't sit at any extreme end. One person sits between B and D. C is not an immediate neighbour of B and A. Who among the followings are at extreme ends of any row?

Discussion

Explore topic-wise InterviewSolutions in Current Affairs.

The perimeter of a rectangular swimming pool is 64 m. If its length and breadth are in the ratio of 5 : 3, then find the length of the pool (in metre).

Find the product of 5m2n, −3mnp and −5n2p.

If a diagonal AC of a parallelogram ABCD is of length 6 cm and side AB is of length 4 cm, then the length of side BC will be

The total surface area of a hollow cylinder which is open from both sides is 4620 sq.cm, area of the base ring is 115.5 sq.cm and height 7 cm. Find the thickness of the cylinder.

A defective briefcase costing Rs. 800 being sold at a loss of 8%. If the price is farther reduced by 5%, find its selling price.

Please solve: What sum will become Rs 9826 in 18 months at 2.5% per annum compounded half yearly?

A submarine after travelling 100 KM from the Shore, descended 11/10 KM below the sea level. Then it ascended about 3/5 KM. The next day, it again descended by 9/10 KM. What is its current position with respect to sea level? What is the horizontal distance of submarine from the sea shore?

A and B undertake to do a piece of work for Rs. 200. A alone can do it in 6 days and B in 8 days. With the help of C they finish it in 3 days.The amount of money paid to C is = Rs. ___

Question 42(i) Write the Y-coordinate (ordinate) of the given point. (3,5)

Simplify 8(3h−4)+5(h−2).

Rekha takes 20 minutes to cover a distance of 3.2 kilometres on a bicycle. Calculate her speed in km/h.

Given below is the height of 20 students in centimeters 150178153156162184170176186173153186162159180183165180150156 Find the number of class intervals in the frequency table if two random class intervals are 180-184 and 185-189

P&Q respectively are midpoints of the sides CA;CB of a right angle triangle ABC right angled at C prove that 1) 4AQ2=4AC2+BC2 2) 4BP2=4BC2+AC2 3) 4(AQ2+BP2)=5AB2

The complement of an angle is two-fifths of its supplement.Find the angle.

In what time will a sum of ₹ 800 at 5 % p.a CI amount to rupees 882? A. 1 Year B. 5 Year C. 4 Year D. 2 Year

A cement company earns a profit of ₹ 8 per bag of white cement sold and a loss of ₹ 5 per bag of grey cement sold. What is the number of white cement bags it must sell to have neither profit nor loss, if the number of grey bags sold is 6,400 bags?

Which of the following should be the THIRD sentence after rearrangement?

Ravish sold his motorcycle to Vineet at a loss of 28%. Vineet spent Rs. 1680 on its repairs and sold the motorcycle to Rahul for Rs.35910, thereby making a profit of 12.5%, find the cost price of motorcycle for Ravish.

If a pipe can fill the tank in 'a' hours and another pipe can empty the full tank in 'b' hours (where b &gt; a), then on opening both the pipes, the net part filled in 1 hour is

Given, A={Quadrilaterals},B={Rectangles},C={Squares}D={Rhombuses}. State, giving reasons, whether the following are true or false. (i)B ⊂ C(ii)D ⊂ B(iii)C ⊆ B ⊆ A(iv)D ⊂ A(v)B ⊇ C(vi)A ⊇ B ⊇ D

Find the amount and the C.I. on Rs. 8000 in 112 years at 20% per year compounded half-yearly.

ABCDE is a regular pentagon. The bisector of angle A of the pentagon meets the side CD in point M. Show that ∠AMC=90o.

Number of zeroes in the number 3.146 × 1020 are______

Question 113 From a pipe of inner radius 0.75 cm, water flows at the rate of 7 m per second. Find the volume in litres of water delivered by the piper in 1 h.

A man starts his trip from the origin of Cartesian plane. He goes 5 units east, 3 units north and then 10 units west. Find his present location on the Cartesian plane. In which quadrant does he lie?

If a coin is tossed 100 times and the head obtained is 47 times then what will be the probability to get head if the coin is tossed again?

Find the number of possible trapeziums.

Vinod sold a watch to Alex at a gain of 12%and Alex had to sell it to Shweta at a loss of5%.If shweta paid Rs.1330 for it, how much did Vinod pay for the watch?

40+3x−x2=?(a) (x+5)(x−8)(b) (5−x)(8+x)(c) (5+x)(8−x)(d) (5−x)(8−x)

Question 92 (ix) Factorise the following using the identity a2−b2=(a+b)(a−b). 2p225−32q2

Factorise: 7x2−19x−6

Write down steps involved in bar grapgh.

By selling 90 ball pens for Rs. 160 a person loses 20%. How many ball pens should be sold for Rs. 96 so as to have a profit of 20%?

Find the smallest number by which 180 must be multiplied so that the product is perfect square.

Coefficient of 'b' in the expression 4b2 is ___.

The value of a machine worth ₹5,00,000 depreciates at the rate of 10% every year. In how many years will its value be ₹3,64,500?

A line segment AB was divided in the ratio m:n by making a single ray AX. The number of arcs to be drawn on AX in order to divide AB in that ratio is:

In an objective type paper of 150 questions , John got 80% correct answers and Mohan got 64% correct answers . What percent is Mohan's correct answers to John's correct answers ?

Which of the following are examples of the null set? (i) Set of odd natural numbers divisible by 2. (ii) Set of even prime numbers. (iii) {x : x is a natural number, x &lt; 5 and x &gt; 7} (iv) { y : y is a point common to any two parallel lines}

When to use simple interest formula in finding compound interest and when to use amount formula in finding compound interest

The digit in the tens place of a two-digit number is three times that in the units place. If the digits are reversed,the new number will be 36 less than the original number ,Find the original number.check your solution

10lm is one of the factors of 20l2m+30alm. The other factor is:

The quadrilateral that can be constructed with the minimum number of given measurements is a _______ .

What is the volume of the cylinder shown below?

Question 11 The volume of a cube is 64 cm3. Its surface area is (a) 16 cm2 (b) 64 cm2 (c) 96 cm2 (d) 128 cm2

Which of the following pair of algebraic expression will add up to give 12xy - 7?

Show that 954 - 459 is exactly divisible by 99.

If a pipe can fill the tank in 'a' hours and another pipe can empty the full tank in 'b' hours (where b > a), then on opening both the pipes, the net part filled in 1 hour is

Which of the following are examples of the null set? (i) Set of odd natural numbers divisible by 2. (ii) Set of even prime numbers. (iii) {x : x is a natural number, x < 5 and x > 7} (iv) { y : y is a point common to any two parallel lines}