Quantitative Aptitude - Arithmetic Ability Questions

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.

The area of the triangle whose vertices are given by (2,4), (-3,-1) and (5,3) is

The number of sides of a regular polygon whose exterior angles are each 72 deg is

In the following question, four groups of three numbers are given. In each group the second and third number are related to the first number by a Logic/Rule/Relation. Three are similar on basis of same Logic/Rule/Relation. Select the odd one out from the given alternatives.

What is the area (in sq cm) of a regular hexagon of side 14 cm?

ΔPQR is right angled at Q. If m∠R = 60o, then find the value of (secP - 1/√3) 

The length of one side and the diagonal of a rectangle are 8 cm and 17 cm respectively. Find its area (in cm2).