Answers

2016-03-15T10:38:56+05:30
Multiples of seven = 7,14,21,28,35
average                 = 7+14+21+28+35/5
                             =  21
the average of first 5 multiples of 7=21
1 5 1
2016-03-16T00:36:39+05:30
Average=7+14+21+28+35/5
=105/5=21
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