A) 50 yr
B) 55 yr
C) 60 yr
D) 70 yr
Correct Answer: A
Solution :
Let the age of the elder son be x yr. Then, age of younger son \[=(x-15)\,yr;\] age of the father = 2x yr. So, \[2x+10=3(x-15+10)\Leftrightarrow 2x+10=3x-15\] \[\Leftrightarrow \,\,\,x=25.\] \[\therefore \] Father's age \[=2x=50\,yr.\]You need to login to perform this action.
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