Question

Find the average of first 15 multiples of 6.

A 720 Correct Answer Incorrect Answer
B 420 Correct Answer Incorrect Answer
C 120 Correct Answer Incorrect Answer
D 48 Correct Answer Incorrect Answer
E None of these Correct Answer Incorrect Answer

Solution

First number = 6 & last number = 90 Average of first 15 multiple of 6 =(1st +last number)/2 = (6+90)/2 = 96/2 = 48

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