Question

1. Use the multiplication method to find the total number of different combinations
possible for a case-sensitive coed, given that each code is three-chractore long.
Also, it is a combination of letters and digits, which can be repeated.

Answer 1

Answer:

Hii dear user!

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There are, you see, 3 x 2 x 1 = 6 possible ways of arranging the three digits. Therefore in that set of 720 possibilities, each unique combination of three digits is represented 6 times.

Remember, the formula to calculate combinations is nCr = n! / r! * (n - r)!, where n represents the number of items, and r represents the number of items being chosen at a time. Let's look at an example of how to calculate a combination.

Hope it helps you dear!