NCERT Example 8 - Pair of Linear Equations in Two Variables
Question: The ratio of incomes of two persons is 9 : 7 and the ratio of their expenditures is 4 : 3. If each of them manages to save ₹ 2000 per month, find their monthly incomes.
Answer: The monthly incomes are Rs 18,000 and Rs 14,000.
Full step-by-step NCERT solution with diagrams on Something by Zero.