A) 30, 50
B) 20, 30
C) 40, 60
D) 16, 24
Correct Answer: C
Solution :
Let the present ages of A and B are x and y years respectively \[\frac{5}{6}\times \]\[=20\times \frac{6}{5}=24\] ?(1) \[\therefore \] ...(2) From (i), we have \[\frac{1}{24}\] and (ii), we have \[9\times \frac{1}{24}\]\[=\frac{3}{8}\] \[20\times x=22x-5.5+0.70\] \[2x=4:8\] Putting the value of y \[\frac{P\times (R+2)\times 4}{100}-\frac{P\times 4\times R}{100}=56\] \[\frac{4P\times 2}{100}=56\] \[P=Rs.700\]
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