A bakery had 3 dozen eggs. The baker made 3 batches of cookies. Each batch required 3 dozen eggs. What fraction of a dozen eggs remained?
4
А
4
B.
2
С
D

Astore has clearance items that have been marked down by 60%. they are having a sale, advertising an additional 55% off clearance items. what percent of the original price do you end up paying?

How many kilograms of a 5% salt solution and how many kilograms of a 15% salt solution must be mixed together to make 45kg of an 8% salt solution?

Bob the builder is making 480kg of cement mix. this is made by cement, sand and gravel in the ratio 1: 3: 4