Quantitative Aptitude - Arithmetic Ability Questions

If tan (5x ­- 10°) = cot (5y + 20°), then the value of x + y is

The difference between the ages of mother and son was 21 when mother's age was 43. If father is elder by 3 years to mother, what will be the difference between the ages of son and father when father attains 50 years?

The total surface area of a cube is 337.5 cm². Find its side (in cm).

Determine the largest 4 digit number which is a perfect square.

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?

Find the range of the data 2, 1, 2, 3, 5, 4, 7, 3, 5, 2, 4.

What would be the compound interest of Rs. 25000 for 2 yrs. at 5% per annum?

If [4(2x/5 - 3/2)]/3 + 7/5 = 37/5, then what is the value of x?