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.

A well of diameter 3 m and depth 14 m is dug. The earth, taken out of it, has been evenly spread all around it in the shape of a circular ring of width 4 m to form an embankment. Find the height of embankment?

If the angles of a triangle are in the ratio of 2 : 5 : 8, then find the value of the largest angle.

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

If tan θ + sec θ = (x – 2)/(x + 2), then what is the value of cos θ?

The length and breadth of a rectangle are 15 cm and 8 cm respectively. Find its area (in cm2)

A tap can fill a tank in 20 minutes. If a leakage is capable of emptying the tank in 60 minutes, the tank will be filled in

The surface area of a sphere is 5544 cm2. Find its diameter (in cm).