SOLUTION: Encik Ahmad's age is three times his son's age. 10 years ago, he was five times his son's age. Calculate the age of Encik Ahmad and his son respectively.
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Question 987709: Encik Ahmad's age is three times his son's age. 10 years ago, he was five times his son's age. Calculate the age of Encik Ahmad and his son respectively.
Answer by macston(5194) (Show Source): You can put this solution on YOUR website!
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F=father's age=3S; S=son's age
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F-10=5(S-10)
3s-10=5S-50
40=2S
20=S ANSWER 1: the son is 20 years old.
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F=3S=3(20)=60 ANSWER 2: Father is 60 years old.
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CHECK:
F-10=5(S-10)
60-10=5(20-10)
50=5(10)
50=50
.
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