Question

the average of 11 number is 60 if 11 is added to each number what will be the new average​

Answer 1

Answer:

71 will be the new average

Answer 2

Answer:

71

Step-by-step explanation:

Let, the sum of 11 number is X

∴ According to the question,

                   $\frac{X}{11} = 60$

              => X = 60 × 11 = 660

∴ After adding 11 to all the 11 numbers , the sum of the 11 numbers will be increased by = 11 × 11 = 121

∴ The sum of the new 11 numbers will be = (660 + 121) = 781

∴ The new average of the 11 numbers will be = $\frac{781}{11}$ = 71