Sequentially 35731

There are 6 different tickets marked with numbers 1 to 6 in the pocket.
In how many different ways can we sequentially, taking into account the order, choose three of them, if the chosen tickets return to the pocket?

Correct answer:

n =  216

Step-by-step explanation:


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Showing 1 comment:
This is wrong. There are 6 different tickets. The answer implies that I can choose 3 tickets with the same number. The real answer is 6 x 5 x 4

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