21) If x is 25% of y, then what per cent of x is y?
(a) 100%
(b) 200%
(c) 300%
(d) 400%
22) The digit in the unit’s place in the cube root of 21952 is
(a) 8
(b) 6
(c) 4
(d) 2
23) The smallest number that must be subtracted from 1000 to make the resulting number a perfect square is
(a) 37
(b) 38
(c) 39
(d) 40
24) The average of all odd numbers less than 100 is
(a) 49.5
(b) 50
(c) 50.5
(d) 51
25) Some articles were brought at 6 for Rs 5 and sold at 5 for Rs 6. Gain is
(a) 5%
(b) 6%
(c) 32%
(d) 44%
26) A can to a work in 6 days and B in 9 days. How many days will both take together to complte the work?
- a) 7.0
- b) 5.4
- c) 3.6
- d) 3
27) If 10% of m is the same as 20% of n, then m : n is equal to
(a) 2 : 1
(b) 1 : 2
(c) 1 : 10
(d) 1 : 20
28) If 80% of A = 50% of B and B = x% of A, then the value of x is
(a) 400
(b) 300
(c) 160
(d) 150
29) Which one of the following numbers is not a square of any natural number ?
(a) 17956
(b) 18205
(c) 63592
(d) 52361
30) If the HCL OF three numbers 144, x and 192 is 12, then the number x cannot be
(a) 90
(b) 84
(c) 60
(d) 48