Quantitative Aptitude - Arithmetic Ability Questions

If a - b = 4 and ab = -3, then what is the value of a3- b3?

If √(sec2A - 1)/secA = x, then the value of x is

If 2x/3 - [5(4x/5 - 4/3)]/2 = 1/3, then what is the value of x?

In the following question, select the odd word from the given alternatives.

If the profit is 20%, then what will be the ratio of cost price to selling price respectively?

What is the average of 36, 43, 51, 68, and 77?

A sum of Rs 1200 amounts to Rs 1740 in 3 years at simple interest. If rate of interest is increased by 3%, then what will be the new amount (in Rs)?

An amount fetched a total simple interest of Rs. 3200 at the rate of 6.25 %/yr in 4 years. What is the amount (in Rs)?