Quantitative Aptitude - Arithmetic Ability Questions

4*(-­0.1(5.5 + 8.5)) of 0.5 = ?

Of the 3 numbers whose average is 40, the first is 1/3 rd the sum of other 2. What is the first number?

Product of digits of a 2­digit number is 12. If we add 36 to the number, the new number obtained is a number formed by interchange of the digits. What is the number.

A certain sum of money becomes double of itself in 15 years at a rate of simple interest. In how many years will it become 5 times of itself at the same rate of simple interest

ΔXYZ is similar to ΔPQR. If ratio of Perimeter of ΔXYZ and Perimeter of ΔPQR is 16:9 and PQ = 3.6 cm, then what is the length(in cm) of XY?

The height of a right circular cylinder is twice its radius of the base. If its height be 6 times its radius of the base, then the volume of the cylinder will be 539 cub.cm more. Assuming Π = 22/7, the height of the cylinder is

What is that least digit that must be added to the product 5786 × 5784 to make it a perfect square?

A circle and a square have same area. The ratio of the side of the square to the radius of the circle will be: