R and S started a business with investments of Rs. ___

Solution

ATQ, Let the investments of R and S be Rs. 'r' and Rs. 's' respectively. Ratio of the respective profit shares of 'R', 'S' and 'X' at the end of 16 months: = {r × 8}:{(s × 8) + (s + 4,000) × 8}:{24,000 × 12} = (8r) :(8s + 8s + 32,000) :(2,88,000) = (8r) :(16s + 32,000) :(2,88,000) = (r) :(2s + 4,000) :(36,000) ATQ: (2s + 4,000) :(36,000) = 11:9 So, 9 × (2s + 4,000) = 11 × 36,000 Or, 18s + 36,000 = 3,96,000 Or, 18s = 3,60,000 Or, 's' = 20,000 Now, Profit share of 'R' = (3/19) × {r + (2 × 20,000) + 4,000 + 36,000} So, 'r' = (3/19) × {r + 40,000 + 40,000} Or, 19r = 3 × (r + 80,000) Or, 19r = 3r + 2,40,000 Or, 16r = 2,40,000 Or, 'r' = 15,000 SO, 15,000 and 20,000 is correct pairs