Question

The mean of 6 numbers is 12 on excluding one number the mean becomes 10 find the number which was removed

Answer 1

Answer:

mean = 12

sum of 6 numbers be x

x / 6 = 12  

x = 72

now , y / 5 = 10

y = 50

x - y = 72-50 = 22

22 is the excluded number

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