Question

Mean of 8 number is 15 .if each number is multiplied by 2 . Then find the new mean .

Answer 1

The new mean of 8 numbers obtained is 30.

• There are total 8 numbers .
• The mean of given number si 15.
• Now each number is multiplied by 2.
• We have to find the mean of the new list of numbers obtained after multiplying by 2,

Mean of 8 numbers = 15

Each number is multiplied by 2, therefore the mean will also be multiplied by 2.

• New mean obtained will be 2 × 15 = 30.