Skip to content
MathsGenie logo
Open app

Course home

  1. AS Level
  2. Maths WJEC
  3. Question bank

Probability

Medium
123456
Question 5
70%

A company has three machines that produce a component. Machine A produces 20% of the components, machine B produces 45% of the components and machine C produces the rest of the components.

4% of the components produced are faulty.

Of the components produced by machine A, 3% are faulty and of the components produced by machine B, 5% are faulty.

Find the percentage of components produced by machine C that are faulty.

[3]

Probability Questions

  1. AS Level
  2. /Maths
  3. /Probability