A) 45 yr, 25 yr
B) 50 yr, 20 yr
C) 47 yr, 23 yr
D) 50 yr, 25 yr
Correct Answer: B
Solution :
Suppose, the present age of son = x yr and present age of father\[=(70-x)\] yr |
According to the question. |
\[2\,(x+10)=(70-x+10)\] |
\[\Rightarrow \] \[2\,x+20=80-x\] |
\[\Rightarrow \] \[3x=60\] |
\[\Rightarrow \] \[x=20\] |
So, sons present age = 20 yr |
And fathers present age\[=70-20=50\text{ }yr\] |
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