Question

the mean of 5 numbers is 18 if one number is excluded their men is 16 find the excluded number

Answer 1

Given:

• The mean of 5 numbers is 18 if one number is excluded their men is 16.

Find:

• Find the excluded number.

Calculations:

Mean of five numbers = 18.

= 5 × 18

= 90 -----(1)

We know, one number is excluded.

= 4 × 16

= 64 -----(2)

Subtracting equation (1) with equation (2), we get:

= 90 - 64

= 26

Therefore, 26 is the excluded number.