Quantitative Aptitude - Arithmetic Ability Questions

If secA/(secA ­- 1) + secA/(secA + 1) = x, then x is

Select the odd word/letters/number/number pair from the given alternatives.

If 5x - (1/2)(2x -7) = 5.5, then what is the value of x?

The number of sides of a regular polygon whose exterior angles are each 40 deg is

The 3rd and 7th term of an arithmetic progression are -9 and 11 respectively. What is the 15th term?

There is 40% increase in an amount in 8 years at simple interest. What will be the compound interest of Rs. 36000 after 2 years at the same rate?

If sinA/(1 + cosA) = x, then x is

Choose the odd word/letters/number/number pair from the given alternatives.