Quantitative Aptitude - Arithmetic Ability Questions

If the elevation of the Sun changes from 30° to 60° , then the difference between the lengths of shadows of a pole 15 m high, is

On a certain principal, simple interest amounts to Rs. 2,000 in two years at the rate of 10% p.a. What will be the difference in the amount of interest if the same is compounded on annual basis?

A's income is 25% more than B's income. B's income is what percent of A's income?

By increasing the price of entry ticket to a fair in the ratio 13:16, the number of visitors to the fair has decreased in the ratio 11:9. In what ratio has the total collection increased or decreased?

If sin ­- 5π/3 = x, then the value of x is

What is the value of Tan 45° - 1/√3 Sec 60°?

What is the value of sin(11π/6)?

If cosA = x, then x is