Question
The average of first 12 multiples of 7
is:Solution
ATQ,
First 12 multiples of 7: 7, 14, 21, ..., 84 (AP with first term = 7, last term = 84) Average of an AP = (First term + Last term) / 2 Average = (7 + 84) / 2 = 91 / 2 = 45.5
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