Quantitative Aptitude - Arithmetic Ability Questions

Identify the odd one out from the following:

The length, breadth and height of a cuboid are 12 cm, 8 cm and 6 cm respectively. The volume of the cuboid is (Use π = 22/7)

a, b and c are 3 values, such that a + b = 5, b + c = 7.5 and c + a = 8.5. What will be the average of these values?

Of the 3 numbers whose average is 72, the first is 2/7 times the sum of other 2. The first number is

What number, from the following should be deducted from 1184 to make it exactly divisible by 21?

A mixture of alcohol and water contains 7% alcohol. How much mixture (in litres) is required to get 357 litres of alcohol?

In the following question, four number pairs are given. The number on left side of (–) is related to the number of 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.

Which of the following ratio is greatest?