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37.
A bag contains 7 raspberry candies, 13 caramel candies, and 5
coffee candies. You are going to reach into the bag and pull out
some candies without looking. What is the least number of
candies that you must pull out to be sure that you have
removed at least three coffee candies?
if August 3rd wos four days after one

Sagot :

Mhanifaidn

Answer:

  • 15

Step-by-step explanation:

There are total cadies in the bag:

  • 7 + 13 + 5 = 25

Probability of pulling a coffee candy is:

  • 5/25 = 1/5

So each 5th candy should be coffee candy

Then you need to pull at least:

  • 5*3 = 15 candies

Note:

To ensure 3 coffee candies you would need to pull 25 - 2 = 23 candies

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