If 3p = 5q, then what is p : q ?
Number of subsets of a set contains “n” elements is
(2 + 3) + 5 = 2 + (3 + 5) obey the law of
If n (A) = 20; n (B) = 8; n (A ∪ B) = 28, then n (A ∩ B) is
7200 ÷ 18 × 0.2 is equal to
3¾ of 1280 + .......... = 250% of 2000
A train moving with a uniform speed of 60 km./hr. crosses a pole in 6 seconds. The length of the train (in metres) is
The next number of the sequence 1, 4, 10, 19, 31, ......... is
The average of three numbers is 15. If two numbers are 7 and 28 the third is
Two poles, 15 m. and 30m. high are 36m. apart. The distance between their tops is
16 men can reap a field in 30 days. In how many days will 20 men reap the field?
If Rs. 6,000 amounts to Rs. 7,200 in 4 years, then the rate of interest is
The supplement of right angle is always
x2- 12x + 36 is equal to