A, B and C invested Rs. 8000, Rs. 4000 and Rs. 8000 respectively in a business. A left after six months. If after eight months, there was a gain of Rs. 4005, then what will be the share of B?

A, B and C enter into a partnership investing Rs 35000, Rs 45000 and Rs 55000 resp. The respective share of A,B and C in an annual profit of Rs 40500 are.

A principal of Rs. 3,000 amounts to Rs. 3,360 in 2 years when compounded at a certain rate of interest. How much will the same principal amount to if it was compounded semi-annually