The average of 25 results is 18. The average of first 12 of them is 14 – McqOptions

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1.	The average of 25 results is 18. The average of first 12 of them is 14 and that of the last 12 is 17. Find the 13th result.
A.	71
B.	75
C.	72
D.	78
Answer» E.

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