Question

T sanger's auto garage, three out of every five cars brought in for service need an oil change. of the cars that need an oil change, four out of every seven also need a tire rotation. what is the probability that a car that comes into the garage needs both an oil change and a tire rotation? give the answer in fraction form.

Answer 1

Probability of an oil change: 3/5. Probability of a tire rotation: 4/7.
3/5*4/7=12/35 chance.