Quantitative Aptitude - Arithmetic Ability Questions

A retailer gets a discount of 40% on the printed price of an article. The retailer sells it at the printed price. His gain percent is

The sum of the ages of Rohit and Ankit is 78. Rohit's age is twice the age of Ankit. What is the age (in years) of Rohit?

ABCD is a parallelogram in which AB = 7 cm, BC = 9 cm and AC = 8 cm. What is the length (in cm) of other diagonal?

If the shopkeeper sells an item at Rs 450 which is marked as Rs 600, then what is the discount he is offering?

What is the value of [sin (90– 10θ) – cos (p – 6θ)]/ [cos (p/2 – 10θ) – sin (p – 6θ)]?

If cos 45° - ­ sec 30° = x, then value of x is

What will be the next set of numbers in the series? (2,3), (3,5), (5,7), (7,11), (11,13), ___

Two equal circles intersect so that their centres, and the points at which they intersect form a square of side 1 cm. The area (in sq.cm) of the portion that is common to the circles is