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?

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?

A 3:2

B 4:3

C 2:6

D 8:12

Solution

Correct Answer: Option B

(8:54-8:30)=24

Robi's cars=24/3=8

Sashi's cars=24/4=6

Ratio=8:6=4:3