Quantitative Aptitude - Arithmetic Ability Questions

If x3 + y3 + z3 = 3(1 + xyz), P = y + z – x, Q = z + x – y and R = x + y – z, then what is the value of P3 + Q3 + R3 – 3PQR?

If (8 - 10x) - (13x - 2) = -9, then the value of x is

If the amount received at the end of 2nd and 3rd year at Compound Interest on a certain Principal is Rs 33708, and Rs 35730.48 respectively, what is the rate of interest?

The mean of a distribution is 18 and the standard deviation is 4.5. What is the value of the coefficient of variation?

In the following question, four number pairs are given. The number on left side of (–) is related to the number on the right side of (–) with some Logic/Rule/Relation. Three are similar on basis of same Logic/Rule/Relation. Select the odd one out from the given alternatives.

Find the area (in sq.cm) of a semi-circle of radius 14cm.

­ A wooden bowl is in shape of a hollow hemisphere of internal radius 8 cm and thickness 1 cm. Find the total surface area of the bowl?

If x4+1x4=119,then the value of x-1x is