A man has 53 socks in his drawer – Riddle

A popular and interesting logic puzzle about multicolored socks. So, try to find the correct answer:

A man has 53 socks in his drawer:
there are 21 identical blue,
15 identical black and 17 identical red.
The lights are out and he is completely in the dark.

How many socks must he take out to make 100 percent certain he has at least one pair of black socks?

A man has 53 socks in his drawer: there are 21 identical blue, 15 identical black and 17 identical red. The lights are out and he is completely in the dark.

Below you will find a hint and the correct answer to the riddle.

Little hint:

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Hint: There is a chance that he will take all 21 blue socks and all 17 red socks, but none of the black ones.

Right answer:

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Answer: 40 socks.

He needs to take out 21, which is the number of blue socks, and 17, which is the number of red socks. Together, that makes 38. It might happen that he takes exactly 21 blue and 17 red socks, so to be 100% sure that he also picks a pair of black socks, he needs to take out 2 more, making it a total of 40 socks.

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