Kamal started a business investing Rs.900.After 5 months,Sameer joined with a capital of  Rs.8000.If at the end of the year,they earn a profit of  Rs.6970,then what will be the share of Sameer in profit?

Toffees are bought at 4 for a rupee and the same number at 6 for a rupee. Then, they are mixed and sold at 5 per rupee. What is the net profit or loss?

The cost of 9 kgs. of sugar is Rs. 279. What is the cost of 153 kgs. of sugar?