Question

The average of a set of 3 numbers is 18. If a number 16 is added to the set, what will
be the new average ?​

Answer 1

Step-by-step explanation:

Mean of 3 numbers =18

⇒ Sum of these 5 numbers =18×5=90

Let number that has been excluded be x

New mean =

4

90−x

=16

Solving this, we get

90−x=64

∴x=26

Answer 2

Answer:

5 average

Step-by-step explanation:

18 % set

add 18 to 16

answer will come . divide it to 5