The average of 8 numbers is 21. If each of the numbers is

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The average of 8 numbers is 21. If each of the numbers is multiplied by 8, find the average of new set of numbers.

1. 166
2. 168
3. 170
4. 172

Correct Option: B

Given that , The average of 8 numbers = 21
Sum of eight numbers = 8 × 21 = 168
Now, each of the numbers is multiplied by 8.
∴ Sum of new eight numbers = 168 × 8 = 1344
∴ Average of new set of numbers = 1344 ÷ 8 = 168