Quantitative Aptitude - Arithmetic Ability Questions

A tank can be filled in 30 minutes. There is a leakage which can empty the tank in 90 minutes. Therefore, the tank will be filled in

Z’s present age is 55 years. If 11 years ago, C’s age was 1/11 of Z’s age, then after how many years C’s age will become 37 years?

Find out the odd word/letters/number/number pair from the given alternatives.

Select the odd number from the given alternatives.

If x = 11, the value of x5 - 12x4 + 12x3 - 12x2 + 12x - 1 is

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

The radii of two concentric circles are 68 cm and 22 cm. The area of the closed figure bounded by the boundaries of the circles is

In a triangle PQR, ∠PQR = 90 deg, PQ = 10 cm and PR = 26 cm, then what is the value (in cm) of inradius of incircle?