A) 6 yr
B) 8 yr
C) 10 yr
D) 12 yr
Correct Answer: B
Solution :
Let present age of mother and daughter be x and y. 2 yr ago, \[x-2=8(y-2)\] \[\Rightarrow \] \[x-8y=-14\] ?(i) 1 yr after, \[x+1=5(y+1)\] \[\Rightarrow \] \[x-5y=4\] ?(ii) On solving Eqs. (i) and (ii), we get \[y=6\,yr\] and \[x=34\,yr\] Let after z yr mother will be three time of her daughter. \[\therefore \] \[34+z=3(6+z)\] \[z=8\,yr\]You need to login to perform this action.
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