A) 26 years
B) 28 years
C) 30 years
D) 35 years
Correct Answer: A
Solution :
Let the present ages of father and son be x years and y years respectively. \[x+10=(y+10)\times 2\]\[\left( -\frac{3}{4},2 \right)\] \[x-2y=10\] ?(1) \[x-2=(y-2)\times 4\]\[\frac{1}{x}-\frac{3}{4}+\frac{1}{2+x}=0\] \[x-4y=-6\] ...(2) Solving equation (1) and (2), we get \[(5,4)\]You need to login to perform this action.
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