At Sally's Hair Salon there are three hair stylists.28% of the haircuts are done by Chris,30% are done by Karine,and 42% are done by Amy.Chris finds that when he does haircuts,4% of the customers are not satisfied.Karine finds that when she does haircuts,3% of the customers are not satisfied.Amy finds that when she does haircuts,5% of the customers are not satisfied.What percentage of unhappy customers had their hair cut by Amy?

Question

Quizplus · Accepted Answer

To solve the problem, we first need to find the overall percentage of unhappy customers at Sally's Hair Salon:
(28% x 4%) + (30% x 3%) + (42% x 5%) = 1.12% + 0.9% + 2.1% = 4.12%
This means that 4.12% of all haircuts at Sally's Hair Salon result in an unhappy customer.
Next, we need to find the percentage of unhappy customers who had their hair cut by Amy. We can do this by dividing Amy's number of haircuts by the total number of haircuts, and then multiplying by the overall percentage of unhappy customers:
(42% x 5%) / 4.12% = 2.1% / 4.12% = 0.5107 = 51.07%
Therefore, the percentage of unhappy customers who had their hair cut by Amy is approximately 51%, which is answer choice D.

At Sally's Hair Salon There Are Three Hair Stylists