How many cars would be asked to take the route A-N-B, that is Akala-Nanur-Bakala route, by the police department?
Explanation:
The police department would ask 2 cars to take the A-N-B route and 2 cars to take the A-M-B route, because 2 cars taking each of these routes would minimize the time for each of the 4 cars.
2 cars taking A-M-B route – 9 + 20.9 = 29.9 minutes.
2 cars taking A-N-B route – 21 + 9 = 30 minutes.
Increasing to 3 cars on the A-M-B would increase travel time of each car by 4.8 minutes and increasing to 3 cars on the A-N-B route would increase travel time of each car by 4 minutes. So 2 cars would take the A-N-B route.
Answer: 2
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