The average age of a group of 10 friends is 15 yr. If one friend le – McqOptions

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1.	The average age of a group of 10 friends is 15 yr. If one friend leaves the group, the average becomes 16 yr. Find the age of the friend who left the group.
A.	2 years
B.	4 years
C.	6 years
D.	None of the above
Answer» D. None of the above

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