24. Five mark exercise problems II

1. Solve by the method of elimination: \(3(2x + y) = 7xy\); \(3(x + 3y) = 11xy\).

 

Answer:

 

\((x,y) =\) $\left(i,\frac{i}{i}\right)$

 

2. The monthly income of \(A\) and \(B\) are in the ratio \(3:4\) and their monthly expenditures are in the ratio \(5:7\). If each saves \(₹5000\) per month, find the monthly income of each.

 

Answer:

 

Monthly income of \(A\) is \(₹\).

 

Monthly income of \(A\) is \(₹\).