How many combinations can be made of 7 identical shirts?
A
1
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B
7
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C
21
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D
128
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Solution
The correct option is B 7 The shirts are alike. In combination 1 shirt or 2 shirts or 3 shirts or ... 7 shirts are identical. Hence 1 combination for each case can be made. Hence, the number of combinations = 1+1+1+1+1+1+1=7