Quantitative Aptitude - Arithmetic Ability Questions

What is the value of x3-1x3+8 when 8x-8x-16=0 ?

If x + 1/x = 6, then value of x2 + 1/x2 is

Select the odd number from the given alternatives.

Find the roots of the quadratic equation 27x2 + 57x -­ 14 = 0

The first and last terms of an arithmetic progression are 37 and ­18. If the sum of the series is 114, then it has how many terms?

What is the difference (in Rs) between the compound interests on Rs. 4000 for 1 year at 12% per annum compounded yearly and half-yearly?

Marked price of a chair is Rs 800 and discount is 15%. What is additional discount (in percentage) should be offered to the customer to bring the price of chair to Rs 578?

Find the perimeter (in cm) of a semicircle of radius 28 cm.