Question

The average of 5 consecutive
natural numbers is m. If the next three natural numbers are also included, how much more than m will the average of these 8 numbers be?

Answer 1

Let the five consecutive no. = 1, 2 3, 4, 5 

Average of no. m = 1+2+3+4+55=31+2+3+4+55=3

Average of eight no. =1+2+3+4+5+6+7+881+2+3+4+5+6+7+88

= 368=4.5368=4.5

3 + x = 4.5

x = 1.5

the average of no. is increased by 1.5