A motorcycle showroom sells 80 red motorcycles each month; it sells 50 125cc bikes, 30 of which are red. What is the chance of a motorbike being 125cc if you know that it is red?
A) 35.5%
B) 36.5%
C) 37.5%
D) 38.5%

Question

Quizplus · Accepted Answer

Given that a motorcycle is red, the probability it is also 125cc is calculated by dividing the number of red 125cc bikes by the total number of red bikes. There are 30 red 125cc bikes out of 80 red bikes, so the probability is 30/80 = 37.5%.

A Motorcycle Showroom Sells 80 Red Motorcycles Each Month; It