Tell which number is prime: 39, 69, 89, 90.
2 answers:
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We want to make a 4 players team, and there are total 8 players. As we know the order of selection does not matter in a team of players, only the combination of players matters.
So we would use concept of Combinations and It will be choose 4 out of 8 players.
The formula for Combination is given as follows :-
Hence, Total number of different teams = 70 combinations.