Select the correct answerThe average of 10 numbers is 7. If each number is multiplied by 12, then the average of the new set of numbers will be?Options1978284
Question
Select the correct answerThe average of 10 numbers is 7. If each number is multiplied by 12, then the average of the new set of numbers will be?Options1978284
Solution
The average of a set of numbers is found by adding all the numbers in the set and then dividing by the count of numbers.
In this case, the average of 10 numbers is given as 7.
If each number is multiplied by 12, the sum of the numbers (which is average * count of numbers = 7 * 10 = 70) will also be multiplied by 12 (70 * 12 = 840).
The count of numbers remains the same (10).
So, the new average will be the new sum divided by the count of numbers, which is 840 / 10 = 84.
Therefore, the correct answer is 84.
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