Quantitative Aptitude - Arithmetic Ability Questions

The ratio of number of boys to the number of girls in a school of 432 pupils is 5 : 4. When some new boys and girls are admitted, the number of boys increase by 12 and the ratio of the boys to girls changes to 7 : 6. The number of new girls admitted is

If Rs. 10000 amounts to Rs. 11664 invested in compound interest(compounded annually) for two years then the annual rate of compound interest is

When a number is increased by 120, it becomes 130% of itself. What is the number?

For x = 462+3, what is the value of x+22x-22+x+23x-23

In the given figure, ABC is an equilateral triangle. Two circles of radius 4 cm and 12 cm are inscribed in the triangle. What is the side (in cm) of an equilateral triangle ?

If cos ­-11π/6 = x, then the value of x is

The value of (sec245 - cot245) - (sin230 + sin260) is

The length of the diagonal and the breadth of a rectangle is 26 cm and 10 cm respectively. Calculate its area (in cm2).