A) Rs. 50000
B) Rs. 40000
C) Rs. 30000
D) Rs. 20000
Correct Answer: D
Solution :
Let the income of person \[=Rs.\,x\] Remaining money after giving 20% to his elder son \[=Rs.\frac{x\times 80}{100}=Rs.\frac{4x}{5}\] Remaining money after giving 30% to his younger son \[=Rs.\frac{4x}{5}\times \frac{70}{100}=Rs.\frac{14}{25}x\] and remaining money after giving 10% to a trust \[=Rs.\frac{14x}{25}\times \frac{90}{100}=Rs.\frac{63}{125}x\] But according to question, Remaining money \[=Rs.10080\] \[\therefore \] \[10080=\frac{63}{1250}x\] \[\Rightarrow \] \[x=\frac{10080\times 125}{63}=20000\] \[\therefore \] Income of person \[=Rs.\,20000.\]You need to login to perform this action.
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