A) Rs. 3400
B) Rs. 2700
C) Rs. 1720
D) Rs. 7200
Correct Answer: D
Solution :
Given, \[\frac{\text{Monthly}\,\,\text{income}\,\,\text{of}\,\,\text{A}}{\text{Monthly}\,\,\text{income}\,\,\text{of}\,\,\text{B}}=\frac{5}{6}\] \[\therefore \]Monthly income of A = 5x and that of B = 6x (x is a constant) According to the question, \[\frac{5x-1800}{6x-1600}=\frac{3}{4}\] \[\Rightarrow \] \[20x-7200=18x-4800\] \[\Rightarrow \] \[2x=2400\] \[\therefore \] \[x=1200\] \[\therefore \]Monthly income of B \[=1200\times 6\]=Rs. 7200You need to login to perform this action.
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