Which of these are unit ratesa square yard for every 100 grass seeds4 acres for 800 plants2 plants in a square foot6 plants in 1 square yard8 seeds per square foot25 trees per 25 square yards?

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.