Question

The mean of 5 numbers is 18. If one number is excluded, thhen mean is 16. Find the excluded number.

Answer 1

X= €XIFI/€FI=
18=X1+X2+X3+X4+X5/5

18*5=90
16*4=64
X5 IS EXCLUDED NO AN ITS VALUE IS 90-64=26 .THANKS FOR QUESTION

Answer 2

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.