Rob and Kiev are young technocrats who wanted to build a technology to recycle waste.
They invest $\$10$ and $\$3$, respectively, each month and make a machine by the end of the year.
They sell the machine and earn a profit of $260.
Find the share of profit that Kiev gets.

Q.

A and B started a business by investing Rs.4000 and Rs.3000 respectively. After 6 months C joined them by investing Rs.4000. At the end of two years they have earned a profit of Rs.4000, then the share of C in the profit is?

Q. A and B started a business by investing ₹10000 and ₹12000 respectively. After a year, they make a profit of ₹2200. Then, find the profit earned by A.

Q. Ram and Shyam invest Rs.15,000 and Rs.25,000, respectively, in a business and at the end of the year , make a profit of Rs.10,000. They agree to re-invest $12\%$ of profit. Out of the remaining profit, each of them takes Rs.1000 and rest is divided in the ratio of their original investment. Find Ram’s total share in the profit.

Q. A manufacturer produces two types of steel trunks. He has two machines A and B. For completing, the first types of the trunk requires 3 hours on machine A and 3 hours on machine B, whereas the second type of the trunk requires 3 hours on machine A and 2 hours on machine B. Machines A and B can work at most for 18 hours and 15 hours per day respectively. He earns a profit of Rs 30 and Rs 25 per trunk of the first type and the second type respectively. How many trunks of each type must he make each day to make maximum profit?