Quantitative Aptitude - Arithmetic Ability Questions

If the Arithmetic mean of 7, 5, 13, x and 9 is 10, then the value of x is

If a:b = 3:8, find the value of (5a ­ 3b)/(2a + b).

If a2+b2c2 = b2+c2a2 = c2+a2b2 = 1k k≠0 then k =

Find the odd numbers/letters/numbers from the given alternatives.

Find the odd words/letter/number from the given alternatives:

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.

Find the odd word/letters/number pair from the given alternatives.

The price of an article is discounted by 25%, to restore to its original value, the new price must be increased by