Question

the mean of six numbers is 32 if one more number is added to the collection, the mean of swven numbers becomes 34,find the value of the seventh number pls tell me in written or explained form​

Answer 1

Answer:

The mean of 6 numbers is 42.

The mean of 6 numbers is 42.∴ Total of 6 numbers =6×42=252

The mean of 6 numbers is 42.∴ Total of 6 numbers =6×42=252The mean of 5 numbers id 45.

The mean of 6 numbers is 42.∴ Total of 6 numbers =6×42=252The mean of 5 numbers id 45.∴ Total of 5 numbers =5×45=225

The mean of 6 numbers is 42.∴ Total of 6 numbers =6×42=252The mean of 5 numbers id 45.∴ Total of 5 numbers =5×45=225⇒ The excluded number =252−225=27