Question

Average of 8 numbers is 21. If all the numbers are multiplied by 8, what is
the new average of the numbers ?
68
(a) 8
(b)21
(c)168
(d)none of these​

Answer 1

Answer:

C

Step-by-step explanation:

The new Average will get 8 times

So the answer is 21×8=168

Answer 2

Answer:

168

Step-by-step explanation:

x*8+y*8+z*8

(x+y+z)*8

21*8

168