Question

he mean of 10 numbers is 32. if one number is excluded,mean of remaining no's become 30. find the excluded number.

Answer 1

Answer:

50

Step-by-step explanation:

Let the sum of obs. be x

mean = sum of obs.

no. of obs.

= x = 32

10

x = 32 × 10 = 320

Let the number excluded be y

mean = 320 - y = 30

9

y = 50

The number excluded is 50