Tape Dispensers
Probability
Level
2
There are 14 tape dispensers, in a dark closet, that dispense different color tape. Two are blue, 3 are purple, 5 are magenta and 4 are green. You want to use one of each color tape, how many tape dispensers will you have to pull out in order to get one of each color?
13
15
14
10
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1 solution
You have to think of the worst case senerio, if you pull out 5 magenta, 4 green and 3 purple. That would be 12 but you would have no blue dispensers, so you have to pull out one more dipenser that had to be blue that would mean you had to pull out 13 dispensers in total.