SOLUTION: The average of 5 numbers is 25.After one of the numbers is removes,the average of the remaining numbers is 31.what no. Has been removed?
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Question 981060: The average of 5 numbers is 25.After one of the numbers is removes,the average of the remaining numbers is 31.what no. Has been removed?
Answer by josgarithmetic(39620) (Show Source): You can put this solution on YOUR website!
The five numbers are of unknown value. Say u is four of them.
One of them is v.
The average of four of them when v is removed becomes 31.
-
Now solve for v.
----------the number which was removed.
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