Given: Two persons earns in the ratio 4 : 7 If both earns ₹3000 more the ratio of the earning becomes 2 : 3 Calculation: Let the constant be x ∴ the two persons earns 4x and 7x According to question: (4x+3000)/(7x+3000)=2/3 ⇒12x+9000=14x+6000 ⇒2x=3000 ⇒x=1500 Sum of the earning