Question

The mean of 6 numbers is 32.If one of the numbers is excluded, the mean reduces by 2.Find the excluded number.

Answer 1

42

Explanation:

Mean = Sum of numbers/ Total numbers

Sum of 6 numbers = 32 x 6

= 192

If one number is excluded the mean reduce by 2 . so it becomes 30

Sum of 5 Numbers = 5 x 30

=150

Therefore the excluded number is

= 192 - 150

= 42.