Class 4A, Class 4B and Class 4C collected paper for the school's recycling drive. The ratio of paper collected by Class 4A to Class 4B is 2 : 1. The ratio of paper collected by Class 4B to Class 4C is 5 : 2. Class 4A collected 80 kilograms of paper. How many kilograms of paper did the three classes collect altogether?
Opening the drawing…
MathBrush is being tested with a few parent groups, and every solution on the site is open to them. If you were given a code, it goes in once and this device remembers it. 65 worked examples are free to everyone without one.