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ss7ja [257]
3 years ago
15

203 red, 117 white, and 28 blue. She asked the students to draw marbles from the box, one at a time and without looking. What is

the minimum number of marbles which students should take from the box to ensure that at least three of them are of the same colour?
Mathematics
1 answer:
grandymaker [24]3 years ago
8 0

Answer:

7

Step-by-step explanation:

Since the goal is to draw three marbles of the same colour, regardless of which colour that is, the worst possible scenario would be drawing two marbles of each color in the first six picks (2 red, 2 white and 2 blue). At this point, with the 7th pick, no matter what colour marble the student picks will form three of the same kind.

Therefore, the minimum number of marbles which students should take from the box to ensure that at least three of them are of the same colour is 7.

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What is the surface area of the triangular prism?<br><br><br> ​
Sergeu [11.5K]

Good morning ☕️

Answer:

<h2>168 ft²</h2>

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