Robi takes 3 minutes to inspect a car and Sashi takes 4 minutes to inspect a car. If they both start inspecting different cars at 8:30 AM, what would be the ratio of the number of cars inspected by Robi and Sashi by 8:54 AM of the same day?
সমাধান
সঠিক উত্তর: Option B
(8:54-8:30)=24
Robi's cars=24/3=8
Sashi's cars=24/4=6
Ratio=8:6=4:3