Question

mean of five numbers is 20 if one number
is excluded their mean becomes 12, find
the excluded number​

Answer 1

Answer:

you have eraser please give me alok

Answer 2

Answer:

ANSWER

The mean of 6 number=20

The sum of 6 number=6×20=120

If one number is excluded

Then mean of 5 number=15

Sum of 5 number=5×15=75

∴excluded number=120−75=45