A bakery uses three ovens to bake loaves of bread. Oven X bakes 30% of the loaves, oven Y bakes 25% of the loaves and oven Z bakes the rest of the loaves.
3.8% of the loaves baked are undercooked.
Of the loaves baked in oven X, 4% are undercooked and of the loaves baked in oven Y, 2.4% are undercooked.
Find the percentage of loaves baked in oven Z that are undercooked.
34 exam-style questions on Edexcel AS Level Maths Probability, covering 5.1 Calculating Probabilities, 5.2 Venn Diagrams, 5.3 Mutually Exclusive and Independent Events, and 5.4 Tree Diagrams. Each one has a worked solution and a mark scheme showing where the marks go.