Quantitative Aptitude - Arithmetic Ability Questions

A missile travels at 1440 km/h. How many metres does it travel in one second?

A taxi going at 90 km/hr takes 35 minutes to travel a certain distance. By how much should it increase its speed (in km/hr) to travel the same distance in 21 minutes?

If the sum of the digits of any integer between 100 and 1000 is subtracted from the same integer , the resulting number is always divisibleby

Find two numbers such that their mean proportion is 16 and third proportion is 1024.

If the compound interest for the 3rd and 4th year on a certain principal is Rs 125 and Rs 135 respectively, what is the rate of interest (in %)?

The amount received at 10% per annum Compound interest after 3 yrs is Rs 5324. What was the principal (in Rs)?

If cot π/3c -­ tan π/4c = x, then the value of x is

The sum of 4x + 3y ­ 7z, x ­ y ­ z and ­2x ­ 3y + 4z is