A man travels for 2 hours at 30 miles an hour and then covers 60 miles in the next 3 hours. What is the average rate for the entire journey?
ক
18
খ
24
গ
36
ঘ
45
সঠিক উত্তর: 24
he travels 60 miles (2 hrs at 30 mph), so the total distance covered is 60+60=120 miles. The total time is 2+3=5 hours. So the average rate is 120/5 = 24 mph