What was the sum of the ages of the father and the daughter 5 years earlier?
A. Ratio of the father’s present age to the daughter’s age after 5 years is 5 : 2.
B. The difference between twice the present age of the father and five times the daughter‘s present age is 20 years.
C. The ratio of the age of the father after 5 Years to tha age of the daughter after 6 years is 5: 2.
Let the present ages of father and daughter be F and D years respectively. A. = 
(5/2) 2F = 5D + 20 2F – 5 D = 20 B. 2 F – 5 D = 20 C. = ((F+5)/(D+6)) = (5/2) 2 F + 10 = 5 D + 30 2 F – 5 D = 20 Here, all the three equations are the same.
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