Find the average of the first five multiples of 7:
A. 10
B. 14
C. 21
D. 35
Correct Answer: C (21)
Explanation:
The first five multiples of 7 are 7, 14, 21, 28, 35.
To find the average, add up all the multiples and then divide the sum by the total number of multiples (which is 5 in this case):
Average = (7 + 14 + 21 + 28 + 35) / 5
Average = 105 / 5
Average = 21
Therefore, the average of the first five multiples of 7 is 21, which corresponds to Option C.
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