Quantitative Aptitude - Arithmetic Ability Questions

Convert decimal 99 to binary.

If cos(A-B) - cos(A+B) = x, then the value of x is

The volume of a right circular cone, whose radius of the base is same as its altitude, and the volume of a sphere are equal. The ratio of the radius of the cone to the radius of the sphere is

The triangle ABC and DEF are similar to each other. The measure of the angle A and E is 67 and 83 degree respectively. What is the value of angle C?

If the amount received at the end of 2nd and 3rd year at Compound Interest on a certain Principal is Rs 32448 and Rs 33745.92 respectively, what is the rate of interest?

Which of the following is correct?

Coefficient of x in (x + 11)(3 -­ 5x) is _____.

What is the value of 26 + 152?