Quantitative Aptitude - Arithmetic Ability Questions

If a - b = 2 and ab = 8, then what is the value of a3 - b3?

A fraction is greater than its reciprocal by (72)/(77). What is the fraction?

A helicopter, at an altitude of 1500 m, finds that two ships are sailing towards it, in the same direction. The angles of depression of the ships as observed from the helicopter are 60° and 30°respectively. Distance between the two ships, in metres is

If 13x2 = 172 - 92, find the value of x?

Find the value of 200 x 20 x 2 x 0.2 x 0.02 x 0.002 = ?

Aditya got 78% marks in the examination. If he secured 663 marks, find the maximum marks.

A and B together can complete a work in 24 days. B alone does 1/3rd part ofthis work in 12 days. How many days will A alone take to complete the remaining work?

A shopkeeper by selling 23 Lotto shoes, earns a profit equal to the selling price of 7 Lotto shoes. His profit percentage is