The mean of five numbers is 30- If one number is excluded- their mean becomes 28- The excluded number is -a- 28 -b- 30 -c- 35 -d- 38

Question

Toppr Admin · Accepted Answer

-d- 38-Mean of 5 numbers - 30-Sum of 5 numbers - 30-215-5 - 150-By excluding one number- the mean becomes 28-Now-Sum of 4 numbers - 28-215-4 - 112-Excluded number - -150-112- - 38

The mean of five numbers is 30. If one number is excluded, their mean becomes 28. The excluded number is
(a) 28
(b) 30
(c) 35
(d) 38

(d) 38
Mean of 5 numbers = 30
Sum of 5 numbers = 30 $\times$ 5 = 150
By excluding one number, the mean becomes 28.
Now,
Sum of 4 numbers = 28 $\times$ 4 = 112
Excluded number = (150 $-$ 112) = 38

The mean of five numbers is 30. If one number is excluded, their mean becomes 28. The excluded number is (a) 28 (b) 30 (c) 35 (d) 38

(d) 38 Mean of 5 numbers = 30 Sum of 5 numbers = 30×5 = 150 By excluding one number, the mean becomes 28. Now, Sum of 4 numbers = 28×4 = 112 Excluded number = (150-112) = 38

The mean of five numbers is 30. If one number is excluded, their mean becomes 28. The excluded number is
(a) 28
(b) 30
(c) 35
(d) 38

(d) 38
Mean of 5 numbers = 30
Sum of 5 numbers = 30 $\times$ 5 = 150
By excluding one number, the mean becomes 28.
Now,
Sum of 4 numbers = 28 $\times$ 4 = 112
Excluded number = (150 $-$ 112) = 38