Quantitative Aptitude - Arithmetic Ability Questions

If y=2secθ and x=3tanθ then x29-y24 is

Volume of a cube is 512 cubic cm, find its total surface area? (Take π = 22/7)

A work can be completed by 18 boys in 24 days. If 6 boys leave after working for 12 days, then how many days will be needed to complete the remaining work?

PQ and RS are common tangents to two circles intersecting at A and B. AB, when produced both sides, meet the tangents PQ and RS at X and Y, respectively. If AB = 3 cm, XY = 5 cm, then PQ (in cm) will be

2 ­- (cosA + sinA)2 is equal to

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

In the following question, select the odd word pair from the given alternatives.

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.