On her coffee table, Sharon has a pile of 7 magazines. She plans to get through 2 of them over the weekend. How many sequences of 2 magazines are possible?
Question
Solution 1
The problem can be solved using the concept of combinations in mathematics.
A combination is a selection of items where order does not matter. In this case, Sharon can choose 2 magazines out of 7 in any order.
The formula for combinations is:
C(n, r) = n! / [r!(n-r)!]
where:
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