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scZoUnD [109]
3 years ago
7

There are 25 towns in a certain country, and every pair of them is connected by a train route. How many train routes are there?

Mathematics
1 answer:
7nadin3 [17]3 years ago
5 0

Answer:

13

Step-by-step explanation:

a pair=2

so 25/each pair of towns

25/2=12+1=13

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