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The average age of 30 boys in a class is 15 years.  One boy aged 20 years, left the class, but two new boys came in his place whose ages differ by 5 years.  If the average age of all the boys now in the class still remains 15 years, the age of the younger new comer is

a)

20 years

b)

15 years

c)

18 years

d)

16 years


Question ID - 51628 | Toppr Answer

The average age of 30 boys in a class is 15 years.  One boy aged 20 years, left the class, but two new boys came in his place whose ages differ by 5 years.  If the average age of all the boys now in the class still remains 15 years, the age of the younger new comer is

a)

20 years

b)

15 years

c)

18 years

d)

16 years

1 Answer - 5876 Votes

3537

Answer Key : (b) -

15 years



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