Ratio of the capitals of A and B = 12 : 24 i.e., 1 : 2. As each of them received `1,80,000, total profit is ₹3,60,000. Let x be the salary of A per annum Total share of A =
1
3
×(3,60,000−x)+x i.e., 1,80,000⇒x=90,000 Hence his monthly salary =