Quantitative Aptitude - Arithmetic Ability Questions

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.

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.

 In ΔABC measure of angle B is 90 deg. If cotA = 7/24, and AB = 1.4cm, then what is the length (in cm) of side AC?

In figure 'O' is the centre of a circle. The area of sector OAPB is 5/18. of the area of the circle find 'x'.

When a number is divided by 63 the remainder is obtained as 26. What will be the remainder when the number is divided by 3?

If the diameter of a hemisphere is 21 cm, then what is the volume (in cub.cm) of hemisphere?

Find the volume (in cm3) of a cube of side 7.5 cm.

What will be the value of xy, if x2+y2 = 45 and x-y=5 ?