A, B and C started a business. At the end of 2 years what is B’s share? I. A and B started a business investing capital in the ratio of 3:5. II. After 6 months, C joined with a capital of Rs. 4 lakhs. III. At the end of 2 years, A’s share was Rs. 60000

Statement I gives A:B = 3:5. Statement II gives C's investment as Rs 4 lakhs after 6 months. Statement III gives A's share as Rs 60000 after 2 years. To find B's share, we need: (i) B's investment ratio, (ii) time period, (iii) total profit or A's profit ratio. All three together give complete information. A:B = 3:5, C invested 4 lakhs for 18 months, A's share = 60000. From this we can calculate total profit and B's share.