SOLUTION: Fahad is 3o year younger then his abu(father)after 4 year their ages wil be in ratio 2:5 what are their present ages

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Question 1014937: Fahad is 3o year younger then his abu(father)after 4 year their ages wil be in ratio 2:5 what are their present ages
Answer by Fombitz(32388) About Me  (Show Source):
You can put this solution on YOUR website!
F=A-30 <-- Fahad is 30 years younger than Abu
%28F%2B4%29%2F%28A%2B4%29=2%2F5 <--- In 4 years, their ages will be in ratio 2:5.
.
.
5%28F%2B4%29=2%28A%2B4%29
5F%2B20=2A%2B8
Substitute from the first equation,
5%28A-30%29%2B20=2A%2B8
5A-150%2B20=2A%2B8
5A-130=2A%2B8
5A=2A%2B138
3A=138
A=46
Then,
F=46-30
F=16