If a man washes 8 cars in 18 minutes, how many cars can he wash in 3 hours at the same rate?
Q1. If a man washes 8 cars in 18 minutes, how many cars can he wash in 3 hours at the same rate?
Answer: 80
Explanation: Rate = 8 cars/18 min; in 3 hours (180 min): 8×(180/18) = 8×10 = 80 cars.