12. The sum of the present ages of the father
and his son is 45 years. 5 years ago, the age
of the father was 6 times that of son. What is
the present age of the son ?
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4
Answer:
10 years
Step-by-step explanation:
Let the present age of son be x.
Present age of father = 45-x
Five years ago,
Age of son = x-5
Age of father = 45-x-5 = 40-x
According to Question,
6(x-5) = 40-x
=> 6x-30 = 40-x
=> 6x+x = 40+30
=> 7x = 70
=> x = 10
Hence, the present age of son is 10 years.
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