Verbal Reasoning - Arithmetic Reasoning - Discussion
Discussion Forum : Arithmetic Reasoning - Section 1 (Q.No. 18)
18.
A man wears socks of two colours - Black and brown. He has altogether 20 black socks and 20 brown socks in a drawer. Supposing he has to take out the socks in the dark, how many must he take out to be sure that he has a matching pair ?
Answer: Option
Explanation:
Since there are socks of only two colours, so two out of any three socks must always be of the same colour.
Discussion:
22 comments Page 3 of 3.
Dipendraji said:
6 years ago
Hi, the question says the word 'matching ' pair so needs to get either two black or two brown socks. Now if he draws and only two. It can be both black or both brown or one each of different color. So 2 is not the answer. But if he draws three he get either all three black or brown or 1 black two brown or 2 black one brown. I. Each case he will surely get a matching color. So 3 is the right answer.
(1)
Sagar yadav said:
4 years ago
In starting he take 2 socks =if 1 is black and 1 is brown.
Know he needs 1 socks (black/Brown),
So 2+ 1=3.
The answer is 3.
Know he needs 1 socks (black/Brown),
So 2+ 1=3.
The answer is 3.
(2)
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