The average age of three boys is 15 years. If their ages are in ratio – McqOptions

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1.	The average age of three boys is 15 years. If their ages are in ratio 3:5:7, the age of the youngest boy is:
A.	9 years
B.	18 years
C.	21 years
D.	27 years
Answer» B. 18 years

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