A) 17 yr
B) 15yr
C) 21 yr
D) 32 yr
Correct Answer: A
Solution :
Percentage age of Anna and Rita are 5x yr and x yr, then according to the question, \[\frac{(5x+2)}{(x+2)}=3\Rightarrow 5x+2=3x+6\] \[\therefore \] \[x=\frac{4}{2}=2\] and \[\frac{(5x+6)}{(x+6)}=2\] \[\Rightarrow \] \[5x+6=2x+12\] \[\therefore \] \[x=\frac{6}{3}=2\] \[\therefore \] Age of Anna after \[7\,\,yr=5x+7\] \[=5\times 2+7\] \[=17\,\,yr\]You need to login to perform this action.
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