Quantitative Aptitude - Arithmetic Ability Questions

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

The 2nd and 6th term of an arithmetic progression are 8 and 20 respectively. What is the 20th term?

∆DEF is right angled at E. If m∠F = 45°, then find the value of (cosecD - 1/√3).

If cos4θ-sin4θ=13 then the value of tan2θ is

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

A train crosses a 550 m long platform in 36 seconds. How long was the train if it was travelling at the speed of 70 kmph?

Which of the following numbers is a perfect square?

The 3rd and 9th term of an arithmetic progression are -8 and 10 respectively. What is the 16th term?