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?
Options:
A . 1.5
B . 1.4
C . 1
D . 2
Answer: Option A Answer: (a)Using Rule 1,Average of numbers = ${x_1+x_2+…+x_n}/n$ The average will increase by 1.5. As, ${1+2+3+4+5}/5$ = 3,${1+2+3+4+5+6+7+8}/8$ = 4.5⇒ 4.5 - 3 = 1.5
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