Question

The mean of 20 numbers is 40.if 5 is subtracted from every number, what will be the new mean

Answer 1

Answer:

$\displaystyle\huge\red{\underline{\underline{AnSwEr}}}$

Mean=,40

Total numbers=20

Total sum=800

If 5 is decreased from all numbers

mean subtracting (20×5) from 800 make total sum=800−100=700

New Mean= 700/20

Hence New Mean =35

Answer 2

Answer:

Mean=,40

Total numbers=20

Total sum=800

If 5 is decreased from all numbers

mean subtracting (20×5) from 800 make total sum=800−100=700

New Mean= 700/20

Hence New Mean =35