An electronics manufacturer has 180 capacitors, and the same number of capacitors is needed for each circuit board made. the manufacturer uses the capacitors to make 45 circuit boards

Afactory buys 10% of its components from suppliers b and the rest from supplier c. it is known that 6% of the components it buys are faulty. of the components brought from suppliers a,9% are faulty and of the components bought from suppliers b, 3% are faulty. find the percentage of components bought from supplier c that are faulty.