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Question Asked by a Student from EXXAMM.com Team
Q 2247112983.     The average age of 20 boys is 14 yr. A boy of 16 leaves them
and a new boy occupies his place. Now their average is
13.8 yr. What is the age of the newcomer?
IBPS-CLERK 2017 Mock Prelims
(Provided By a Student and Checked/Corrected by EXXAMM.com Team)