Question 64
The average of 12 numbers is 9. If each number is multiplied by 2 and added to 3, the average of the new set of numbers is
Solution
Average of 12 numbers = 9
If each number is multiplied by 2 and added to 3, then the average will also change accordingly
=> New average = $$9 \times 2+3=21$$
=> Ans - (C)
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