# Learn and Practice Free Average Set 7 questions

## You can get answer of the below sample questions by going through the above Question sets.

Option 1: 21
Option 2: 22
Option 3: 23
Option 4: 24
Option 5:

Option 1: 665
Option 2: 657
Option 3: 658
Option 4: 678
Option 5:

Option 1: 6
Option 2: 12
Option 3: 24
Option 4: 18
Option 5:

Option 1: 20
Option 2: 21
Option 3: 23
Option 4: 24
Option 5:

Option 1: 3.6
Option 2: 4.6
Option 3: 6.5
Option 4: 7.3
Option 5:

Option 1: 35
Option 2: 36
Option 3: 37.5
Option 4: 38.2
Option 5:

Option 1: 30
Option 2: 40
Option 3: 50
Option 4: 60
Option 5:

Option 1: 10.5
Option 2: 11.5
Option 3: 12.5
Option 4: 13.5
Option 5:

#### If the mean of a, b, c is M and ab + bc + ca = 0, then the mean of a^2, b^2, c^2 is :

Option 1: M
Option 2: 3 M^2
Option 3: 2 (M/3)
Option 4: M^2
Option 5:

#### A student was asked to find the arithmetic mean of the numbers 3, 11, 7, 9, 15, 13, 8, 19, 17, 21, 14 and x. He found the mean to be 12. What should be the number in place of x ?

Option 1: 6
Option 2: 7
Option 3: 8
Option 4: 9
Option 5:

Practice Free Average Set 7 Questions online

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