A) 12 years, 36 years
B) 15 years, 45 years
C) 40 years, 20 years
D) 10 years, 12 years
Correct Answer: A
Solution :
Let the present age of Kajal be \[x\] years, then the present age of Kajal's father be \[3x\] yrs. After 12 yrs, Kajal's age \[=x+12\] years. After 12 yrs, Kajal's father age \[\Rightarrow \]\[3x+12\]years A/Q, \[3x+12=2(x+12)\] \[\Rightarrow \]\[3x+12=2x+24\] \[\therefore \]\[x=12\] Kajal's age =12 years His father's age \[=12\times 3=36\]years
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