The average age of boys in a
class of 30 is 18 years if
10 more boys are to joins the
class the average age of the whole
class gets increases by a year.
what is the average age of
the Newcomers!
Answers
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0
Answer:
22 Years...
Step-by-step explanation:
Total average of 30 students = 18 years
Total age of 30 students = 540 yrs.
Total average age of 40 boys = 19 years
Total age of 40 students = 760 yrs.
Age of 10 new comers = 220 yrs.
So, Average age of 10 students = 220/10 yrs. = 22 yrs.
Hope It Helps............
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