The ratio of weekly incomes of A and B is 9: 7 and the ratio of their expenditures is 4: 3. If each saves Rs. 200 per week, then the sum of their weekly incomes is |
A) Rs. 3600
B) Rs. 3200
C) Rs. 4800
D) Rs. 5600
Correct Answer: B
Solution :
Let incomes of A and B are Rs. 9x and Rs. 7x, respectively. |
\[\therefore \] \[\frac{9x-200}{7x-200}=\frac{4}{3}\] |
\[\Rightarrow \] \[27x-600=28x-800\] |
\[\Rightarrow \] \[x=200\] |
Hence, required sum \[=\,\,9x+7x\] |
\[=16\times 200=Rs.\,3200\] |
You need to login to perform this action.
You will be redirected in
3 sec