Quantitative Aptitude - Arithmetic Ability Questions

If the standard deviation of a population is 6.5, what would be the population variance?

If 5 ­ 3x < 4 ­ x and 5(2 ­ x) > 2 ­ 2x, then x can take which of the following values?

If Cos θ = 5/13, then Cosec θ = ?

A and B have their annual average income Rs. 80,000.
B and C have their annual average income Rs. 75,000.
C and A have their annual average income Rs. 78,000.

The annual income of A is ?

If 2(3x + 5) > 4x -­ 5 < 3x + 2; then x can take which of the following values?

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 options.

Find the odd word/letters/number from the given alternatives.

The third proportional of two numbers 24 and 36 is