The average age of a group of 31 persons is 19 years. When one person – McqOptions

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1.	The average age of a group of 31 persons is 19 years. When one person leaves, the average age of the group becomes 18. What is the age of the persons leaving?
A.	49 वर्ष
B.	45 वर्ष
C.	50 वर्ष
D.	48 वर्ष
Answer» B. 45 वर्ष

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