Question 128
The average of 8 numbers is 21. If each of the numbers is multiplied by 8, the average of the new set of numbers is
Solution
Average of 8 numbers = 21
=> Sum of numbers = $$21\times8=168$$
If each of the numbers is multiplied by 8, then the total sum is also multiplied by 8, => New sum = $$168\times8$$
$$\therefore$$ Average of new set = $$\frac{168\times8}{8}=168$$
=> Ans - (B)
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