Quantitative Aptitude - Arithmetic Ability Questions

If x + (1/x) = 2, then what is the value of x21 + (1/x1331)?

The population of a town is 200000. It increases annually at the rate of 10%. What will be the population after 2 years?

Find the L.C.M of 4/5, 2/3 and 5/7.

If A = 400 and B = 600, then A is how much percentage less than B?

Sum of lengths of all edges of a cube is 84 cm, find its volume?

A wholesaler sells a good to a retailer at a profit of 5% and the retailer sells it to a customer at a profit of 10%. If the customer pays Rs. 2,000, what had it cost (in Rs) the wholesaler?

PQRS is a cyclic quadrilateral and PQ is the diameter of the circle. If ∠RPQ = 38°, then what is the value (in degrees) of ∠PSR?

The angles of a triangle are in the ratio 1 : 1 : 4. If the perimeter of the triangle is k times its largest side, then what is the value of k?