Quantitative Aptitude - Arithmetic Ability Questions

The sum of present age of father and his son is 60 yrs. Six years ago, father's age was five times the age of the son. After 6 years, son's age will be?

Abhishek marks the price of his laptop 60% above the cost price. If he gives a discount of 30% on the marked price, then what is the profit percentage?

Deepinder lent Rs 8200 to Jairaj for 16 years and Rs 4900 to Karna for 15 years on simple interest at the same rate of interest and received Rs 19446.5 in all from both of them as interest. The rate of interest per annum is:

Breadth of a rectangle is equal to the diagonal of the square whose side is 2.5√2 cm. Ratio between length and breadth of rectangle is 3 : 1. Find the area of the rectangle (in cm2).

Which of the following quadratic equations has real roots?

The diameters of two cylinders are in the ratio 3:2 and their volumes are equal. The ratio of their heights is

[sinA/(1 + cosA)] + [(1 + cosA)/sinA] is equal to

If cosπ/4c - tanπ/4c = x, then x is