Answer:
6 ways
Explanation:
Given that:
Number of options, n = 4
Combo, r = 2
Using Combination :
nCr = n! ÷ (n-r)! r!
4C2 = 4! ÷ (4-2)!2!
4C2 = 4! ÷ 2!2!
4C2 = (4 * 3) / (2 * 1)
4C2 = 12 / 2
4C2 = 6
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