Quantitative Aptitude - Arithmetic Ability Questions

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

Rizvan walks at 15 km/hr and Ruchitha cycles at 20 km/hr towards each other. What was the distance between them when they started if they meet after 42 minutes?

How long will Ramesh take to run round a square park of edge 50 meters, if he runs at the rate of 18 km/hr?

What is the ratio of simple interest earned on certain amount at the rate of 12% for 6 years and that for 12 years?

The area of a circle is 616 sq.m. Find its diameter.

If 3a+4b3c+4d = 3a-4b3c-4d, then 

In ΔABC measure of angle B is 90 deg. If cosA = 5/13, and AB = 10 cm, then what is the length (in cm) of side BC?

If secA -­ tanA = x, then the value of x is