5 years

5 years ago the age of a father was thrice the age of his son. In 5 years time, the age of the father will be twice the age of his son at that time. Find their present ages.

Correct answer:

f =  35
s =  15

Step-by-step explanation:

f5=3 (s5) f+5=2 (s+5)  f3s=10 f2s=5  Row2Row1Row2 f3s=10 s=15  s=115=15 f=10+3s=10+3 15=35  f=35 s=15



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