SOLUTION: Suppose you have 10 dark chocolates and 11 light chocolates in a box. 1) Without looking, how many chocolates would you need to pick out of the box to be sure you get two light

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Question 937761: Suppose you have 10 dark chocolates and 11 light chocolates in a box.
1) Without looking, how many chocolates would you need to pick out of the box to be sure you get two light chocolates?
2)Without looking, how many chocolates would you need to pick out of the box to be sure you get either two lights or two darks?

Found 2 solutions by josgarithmetic, MathTherapy:
Answer by josgarithmetic(39617) About Me  (Show Source):
You can put this solution on YOUR website!
Question 1:
No more than 12. If picked the 10 dark pieces, still would not have any light pieces. The next two picked will only be light pieces.
Question 2:
Harder but somewhat like question 1.

Answer by MathTherapy(10552) About Me  (Show Source):
You can put this solution on YOUR website!
Suppose you have 10 dark chocolates and 11 light chocolates in a box.
1) Without looking, how many chocolates would you need to pick out of the box to be sure you get two light chocolates?
2)Without looking, how many chocolates would you need to pick out of the box to be sure you get either two lights or two darks?
To ensure two light chocolate are chosen, you'd have to choose highlight_green%2812%29 chocolate
To ensure two light or two dark chocolate are chosen, you'd have to choose highlight_green%283%29 chocolate