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Math

Answered

A "combination" lock has a dial bearing the numbers 1 through 17. How many different 3 number combinations are possible if there are no restrictions on the 3 numbers?

Sagot :

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Answer:

There are 6 = 3x2x1 ways to order 3 digits in a row. Thus the number of combinations of 3 of the 10 digits is 720/6 = 120 combinations.

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