A) 36 yr
B) 32 yr
C) 30 yr
D) 34 yr
Correct Answer: C
Solution :
[c] Let A's present age \[=xyr\]and B's present age \[=yyr\] Given, \[x+y=70\] . (i) and \[x=(y+6)+4\]\[\Rightarrow \]\[x=y+10\] \[\Rightarrow \] \[x-y=10\] . (ii) Now, solving Eqs. (i) and (ii), we get \[x=40\]and \[y=30\] \[\therefore \] B's present age \[=y=30\text{ }yr\]You need to login to perform this action.
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