A) $800
B) $700
C) $900
D) $200
E) None of these
Correct Answer: C
Solution :
Income of \[x=4x\]and income of \[y=5x\] Expenditure of \[x=7y\]and expenditure of \[y=9y\] \[\Rightarrow 4x-7y=100\] \[\Rightarrow 5x-9y=100\]You need to login to perform this action.
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