Helpers are needed to prepare for the fete. Each helper can make either 2 large cakes per hour, or 35 small cakes per hour. The kitchen is available for 3 hours and 20 large cakes and 700 small cakes are needed. How many helpers are required?
The adjacent sides of a rectangle are in the ratio 5:4 and the area of the rectangle Is 8000 sq.cm. What is the length and breadth of rectangle? Solving Methods