Quantitative Aptitude - Arithmetic Ability Questions

The square root of which of the following numbers is irrational?

The product of two numbers is 20. One of them is 1.25. What is the other number?

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.

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

If two complimentary angles are in the ratio of 11 : 7, find the smaller angle.

In a rectangle _____.

What is the digit in unit's place of the product 51 x 52 x 53 ...... 59?

From a solid cube of side 7 cm, a conical cavity of height 7 cm and radius 3 cm is hollowed out. Find the volume of remaining solid?