A) 35 years
B) 40 years
C) 45 years
D) 50 years
E) None of these
Correct Answer: B
Solution :
Explanation Option [b] is correct. Let the age of son after 5 years be x years. Then, the age of father after 5 years would be 3x years. Five years ago the age of son = (x ? 10) years. Five years ago the age of father = (3x ? 10) years According to the given information in the question, \[\left( 3x-10 \right)=7\left( x-10 \right)\] or \[3x-10=7x-70\] or \[4x=60~~or~~~x=15\] years Therefore, present age of father would be (3x ? 5) years or (45 ? 5) = 40 years.You need to login to perform this action.
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