How many sticks are 86 inches or longer?

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Solution

The correct option is C 20
Number of sticks with 86 inches length = 2
Number of sticks with 87 inches length = 8
Number of sticks with 88 inches length = 4
Number of sticks with 89 inches length = 2
Number of sticks with 89 inches length = 4

Total sticks with length of 86 inches or longer = 2 + 8 + 4 + 2 + 4 = 20

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