Quantitative Aptitude - Arithmetic Ability Questions

If 3a – (3/a) – 3 = 0, then what is the value of a3 – (1/a3) + 2?

If a retailer offers a discount of 28% on the marked price of his goods and thus ends up selling at cost price, what was the % mark up?

The 3rd and 9th term of an arithmetic progression are -8 and 10 respectively. What is the 16th term?

If 3 dozen guavas cost Rs. 90, how many guavas can be bought for Rs. 240?

If Cos θ = 5/13, then Cosec θ = ?

If 2(3x + 5) > 4x -­ 5 < 3x + 2; then x can take which of the following values?

In the last financial year, a car company sold 41,800 cars . In this year, the target is to sell 51,300 cars . By what percent must the sale be increased ?

If cosAcotA/(1 -­ sinA) = x, then the value of x is