A, B and C jointly thought of engaging themselves in a business venture. It was agreed that A would invest Rs. 6500 for 6 months, B, Rs. 8400 for 5 months and C, Rs. 10, 000 for 3 months. A wants to be the working member for which he was to receive 5 % of the profits. The profit earned was Rs. 7400. Calculate the share of  B in the profit.

A began a business with Rs. 85, 000. He was joined afterwards by B with Rs. 42, 500. For how much period does B join, if the profits at the end of the year are divided in the ratio of 3: 1?

X and y invested in a business, they earned some profit which they divided in the ratio of 2: 3. If X invested Rs. 40, 000. The amount invested by Y is?