## Mathematics and Pedagogy MCQ Question with Answer:

1. The smallest number by which 3087 may be multiplied so that the product is a perfect cube is

(a) 6

(b) 5

(c) 4

(d) 3

2. Surendra borrows Rs. 400 from his friend. He agrees to return the money after 4 yr at the rate of 5% per annum. How much amount will he pay?

(a) Rs. 500

(b) Rs. 580

(c) Rs. 480

(d) Rs. 400

3. A soap-cake measures 7 cm in length, 5 cm in breadth and 2.5 cm in height. How many soap-cakes can be placed in a cardboard box whose length, breadth and height are, respectively 56 cm, 40 cm and 25 cm?

(a) 64

(b) 640

(c) 6400

(d) 6440

4. $ 17\frac{1}{16}$ decimal equivalent as

(a) 17.625

(b) 17.6025

(c) 17.0625

(d) 17.0525

5. Two numbers are in the ratio 2:3. If 9 is added to each, they will be in the ratio 3:4, the numbers are

(a) 12, 28

(b) 8, 12

(c) 18, 27

(d) 10, 15

6. The average of 4 numbers is 7. If the sum of first three numbers is 20, find the fourth number.

(a) 7

(b) 10

(c) 9

(d) 8

7. Rajesh purchased a watch for Rs. 300. He sold it for Rs. 330. Find the profit percent.

(a) 5%

(b) 13%

(c) 14%

(d) 10%

8. ∠POR and ∠QOR form a linear pair. If a – b =80°, then the value of a and b is respectively

(a) 108°, 72°

(b) 105°, 75°

(c) 95°, 85°

(d) 130°, 50°

9. Simplify : $ \frac{\left( 48 \right) ^{-2}\times \left( 64 \right) ^{\frac{1}{2}}}{\left( 24 \right) ^{-1}}$

(a) 24

(b) 12

(c) 12^{-1}

(d) None of these

10. A water tank is 3 m long, 2.5 m broad and 4 m high. What is the capacity of the tank in liters, if 1000 cu cm=1L?

(a) 20000

(b) 5000

(c) 30000

(d) 4000

11. If $ \frac{a}{5}=\frac{b}{6}=\frac{c}{7}$ then $ \frac{a+b+c}{b}$

(a) 1

(b) 2

(c) 3

(d) 4

12. The value of $ \sqrt{0.000441}$ is equal to

(a) 0.00021

(b) 0.0021

(c) 0.021

(d) 0.21

13. If $ \frac{4}{5} $ of an estate be worth Rs. 16800, then the value of of $ \frac{3}{7}$ it is

(a) Rs. 90000

(b) Rs. 9000

(c) Rs. 72000

(d) Rs. 21000

14. If a number x is 10% less than another number y and y is 10% more than 125, then x is equal to

(a) 150

(b) 143

(c) 140.55

(d) 123.75

15. A man with of his usual speed reaches the destination hr late. Find his usual time to reach the destination.

(a) 4 hr

(b) 3 hr

(c) $ 3\frac{3}{4} $ hr

(d) 4 hr