A) 70
B) 60
C) 80
D) 90
Correct Answer: C
Solution :
Let A's income = Rs. a and Bs income =Rs. b \[a\times 60%=b\times 75%\] \[\Rightarrow \] \[a\times 4=5\times b\] \[\Rightarrow \] \[\frac{b}{a}=\frac{4}{5}\] Now, \[b=a\times x%\] \[\Rightarrow \] \[\frac{b}{a}=\frac{x}{100}\] \[\Rightarrow \] \[\frac{x}{100}=\frac{4}{5}\] \[\Rightarrow \] \[x=80\]You need to login to perform this action.
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