Quantitative Aptitude - Arithmetic Ability Questions

Working 10 hours a day, Aman can complete a piece of work in 18 days. How many hours a day should he work so as to finish the work in 15 days?

A train travelling at 76 kmph crosses a 450 m long platform in 27 seconds. What is the length of the train?

If cosec π/4 - ­ sin π/3 = x, then the value of x is

If 3x + 4(1-x) > 5x -2 > 3x - 4; then the value of x is

Find the value of '?' in 512 × 125 ÷ 15625 = 3125 × 25?

By which least number should 5000 be divided so that it becomes a perfect square?

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

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