If the product of the present ages of father and son is 640 and the – McqOptions

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1.	If the product of the present ages of father and son is 640 and the ratio of their present ages is 5 : 2 , what is the age of the son ?
A.	12 years
B.	16 years
C.	19 years
D.	21 years
Answer» C. 19 years

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