The average age of a group of men is increased by
6 years when a person aged 26 years is replaced by
a new person of aged 56 years. How many men are
there in the group?
(a) 3
(b) 4
(c) 5
(d) 6
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Answer:
5 men. because increment in 30 years make average increased by 6 ,30/5 is 6
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