Question

The average of two numbers is 15. if one of them is 16. which is the other one?​

Answer 1

Answer:

one number =16

other number =x

average =15

(16+x)/2=15

16+x=15×2

16+x=30

x=30-16

x=14

Answer 2

answer:

Average of a set of 10 numbers is 15

∴ Total =15×10=150

If one number is removed than average of 9 number is 16.

∴ Total =9×16=144

Then the number removed =150−144=6