11) If 13 + 23 + 33 ….. + 103 = 3025, then 4 + 32 + 108 + …… + 4000 is equal to
a) 12000
b) 12100
c) 122000
d) 12400
12) The lengths of the diagonals of a rhombus are 24 cm and 18 cm, respectively. The lengths of each side of the rhombus is
a) 12 cm
b) 9 cm
c) 15 cm
d) 8 cm
13) The area ( in sq cm) of the largest circle that can drawn inside a square of side 28 cm, is
a) 17248
b) 784
c) 8624
d) 616
14) The digit in unit’s place of the product
49237 x 3995 x 738 x83 x 9 is
a)0
b) 7
c) 5
d) 6
15) The number, whose square is equal to the difference of the squares of the numbers 68 and 32, is
a) 36
b) 48
c) 60
d) 64
16) If x earn 25% more than y. What per cent less does y earn than x?
a) 16%
b) 10%
c) 20%
d) 25%
17)If A and B are in the ratio 3 : 4 and B and C are in the ratio 12 : 13, then A and C will be in the ratio
a) 3 : 13
b) 9 : 13
c) 36 : 13
d) 13 : 9
18) (0.04) –(1.5) is equal to
a) 25
b) 125
c) 60
d) 5
19) For a certain article, if discount is 25% the profit is 25%. If the discount is 10%, then the Profit is
a) 50%
b) 40%
c) 30%
d) 33 %
20) {(49)15 – 1} is exactly divisible by
a) 8
b) 14
c)50
d) 51