Math Set - 20

1. If (17)² is subtracted from the square of a number, the answer so obtained is 1232. What is the number?

a. 36  b. 42  c. 37
d. 39  e. 32

2. 22.5 x 32.4 ÷ 4.5 = ?

a. 164  b. 152  c. 156
d. 166  e. None

3. 3352 + 3331 + 3109 + 3456 = 28810 - ?

a. 13748  b. 15602  c. 13478
d. 15562  e. None

4. 324 x 149 = ?

a. 47628 b. 48276 c. 47978
d. 48622 e. None

5. 3055 ÷ 25 x 3.4 + 125 = ?

a. 52.50 b. 418.28 c. 662.68
d. 540.48 e. None

6. 75 x sqrt of (841) ÷ 15 = ?

a. 135  b. 145  c. 125
d. 115  e. None

7. (63)² ÷ (?)² + 3² = 58

a. 81  b. 6  c. 9
d. 36  e. 7

8. 8452 + 1208 = ? x 28

a. 345  b. 365  c. 355
d. 325  e. None

9. (5)² x (25)³ x 125 = 5^?

a. 9  b. 7  c. 8
d. 11 e. None

10. (3750 – 2580) ÷ 25 ÷ 6 = ?

a. 7.80  b. 280.80 c. 15.80
d. 250.50 e. None

11. 55% of 560 – 28% of ? = 229.6

a. 250  b. 260  c. 300
d. 320  e. None

12. (10248 ÷ 56) – (7568 ÷ ?) = 11

a. 42  b. 54  c. 48
d. 52  e. None

13. 97306 – 89306 = ?% of 32000

a. 20  b. 40  c. 35
d. 25  e. None

14. 12.5% of 350 x 8.4% of 250 = ?

a. 831.25  b. 913.50  c. 918.75
d. 1050    e. None

15. A number, when divided by 221, leaves a remainder 64. What is the remainder if the same number is divided by 13?

a. 0 b. 1 c. 11
d. 12    e. None

16. The LCM of two numbers is 44 times of their HCF. The sum of the LCM and HCF is 1125. If one number is 25, then the other number is

a. 1100  b. 975  c. 900
d. 800   e. None

17. 0.001 is equivalent to

a. 10%  b. 1%  c. 0.01%
d. 0.1% e. None

18. (6.5 x 6.5 – 45.5 + 3.5 x 3.5) is equal to

a. 10  b. 9  c. 7
d. 6   e. None

19. If the selling price of 4 articles is equal to the cost price of 5 articles, the profit is

a. 20%  b. 22.5% c. 25%
d. 30%  e. None

20. If selling price of an article is reduced by 60%, then there is a loss of 10% on cost price. The initial profit percent is

a. 70  b. 80  c. 100
d. 125   e. None

Answers;-

1(d) 2(e) 3(d) 4(b) 5(d) 6(b) 7(c) 8(a)
9(d) 10(b) 11(e) 12(e) 13(d) 14(c) 15(d) 16(a)
17(d) 18(b) 19(c) 20(d)