3 balls are drawn randomly from a bag contains 3 black, 5 red and 4 blue balls. What is the probability that the balls drawn contain balls of different colors?
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) Rs. 1900 b) Rs. 2660 c) Rs. 2800
d) Rs. 2840 e) None of these