Question

The ratio of the ages of mother and father at the time of the birth of their son is 9:8, the ratio of ages of father and mother would be 17:16 when their son's age would be double of his present age.What is ratio of the present ages of father and mother.​

Answer 1

Answer:

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Step-by-step explanation:

let:

father's age = x

mother's age = y

their age at birth of their son = 9:8

when son's age would be double of their present age = 17:16

from both given it's a difference of 8 = 17-9  

                                                          = 8

16-8 = 8

son's present age = 8/2               (or 8 ÷ 2)

                           = 4

present age ration of father and mother = 9 + 4 : 8 + 4  

                                                              = 13 : 12