The length of a bathroom floor is 10 1/2’ x 6 1/2’ how many tiles does it take to cover the width of the floor

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.