The average of first five multiples of 7 is: Choose the correct choice from the following options:
A) 9  B) 16  C) 15  D) 8  E) 21
21xplanation :   (7(1+2+3+4+5)/5   = 7x15/5   = 21   Answer : 21
<result>E</result>
The average of first five multiples of 7 is: