Quantitative Aptitude - Arithmetic Ability Questions

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

A can complete a work in 20 days and B can complete the same work in 25 days. If both of them work together, then in 3 days what percent of the total work will be completed?

Sum of four times a fraction and 6 times its reciprocal is 11. What is the fraction?

Find the smallest 8 digit number which is exactly divisible by 121.

The diagonal of a cube is 192 cm. Its volume in cm3 will be 

The first and last terms of an arithmetic progression are 25 and ­52. What is the sum of the series if it has 12 terms?

The length of the diagonal and the breadth of a rectangle are 17 cm and 8 cm respectively. Find its perimeter (in cm).

If the perimeter of a semicircle is 108 cm, then find its area (in cm²).