A car washer machine can wash 8 cars in 18 minute ,how many car she can wash within 3 hours at same rate?

A car washer machine can wash 8 cars in 18 minute ,how many car she can wash within 3 hours at same rate?

A 54

B 72

C 80

D 87

Solution

Correct Answer: Option C

Car can be washed = (8/18) ×180 =80