The average age of A, B and C is 25 years. The ratio of their age is 3 : 5 : 7. What is the age of A?

The average age of A, B and C is 25 years. The ratio of their age is 3

1.	The average age of A, B and C is 25 years. The ratio of their age is 3 : 5 : 7. What is the age of A?
A.	12 years
B.	15 years
C.	18 years
D.	21 years
E.	.
Answer» C. 18 years

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The average age of A, B and C is 25 years. The ratio of their age is 3 : 5 : 7. What is the age of A?

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