A question in a Amusement park?

Number Theory Level 2

Calvin, Satvik, Daniel, Sharky and Aditya go to an Amusement Park. The all are fancied by a ride and want to ride on it. But the ride has to be taken by exactly 4 people at a time.

What is the minimum number of times that groups of 4 from the group of 5 will have to take the ride in order to ensure that all the 5 get equal chances on the ride?

Details And Assumptions:

  • Assume that there are no other people who are willing to take the ride at that time.

  • Assume that the 5 can take any ride as many times as they want.

  • Assume that they ride at least once.


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