Quantitative Aptitude - Arithmetic Ability Questions

Which of the following numbers is a perfect square?

X can do a piece of work in 'p' days and Y can do the same work in 'q' days . Then the number of days in which X and Y can together do that work is

If sinθ+ cosecθ=2, then the value of sin-7∅+cosec7∅ is

The least number, which when divided by 5, 6, 7 and 8 leaves a remainder 3 in each case, but when divided by 9 leaves no remainder, is:

Two numbers are in the ratio 5:6 when 6 is added to each, the ratio becomes 7:8 then the numbers are

At what rate of compound interest per annum will a sum of Rs 20000 become Rs 25088 in 2 years?

What is the value of tan 300°?

If a3+1a3 = 2, then the value of a2+1a?