Chocolate 6
An international gang of chocolate smugglers led by the famous Jack Crooked Nose, who has 7 collaborators, singled out the Bratislava airport as a crossroads for their business. An aircraft from Bratislava to Stockholm flies every third day. An aircraft from Bratislava to Salzburg flies every fifth day, and an aircraft from Bratislava to Budapest flies every Sunday and Wednesday. On the fourth of January all three aircraft took off at the same time. The chocolate smugglers agreed that they would meet at the airport always on the day when all three aircraft depart at the same time. How many times did they meet by the end of the year, if bus line number 61, which has its terminal at the airport, has an interval of 21 minutes.
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