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 2 of 3.
Abhishek Lohara said:
10 years ago
Hello all please read the question clearly. It says here he need to take out "1 matching pairs" i.e. either two black or two brown so for doing this he must do 3 attempts because in 2 attempts he might get 1 black and 1 brown which is not matching pair but in 3rd one he sure get a black or brown so therefore he obviously get a matching pair.
And it's also possible that 3 of them might black or brown so ultimately he get 2 (one pair of black or brown) from minimum of 3 from here. So 3 is the "must" no. of socks he need to take out. So answer is 3.
And it's also possible that 3 of them might black or brown so ultimately he get 2 (one pair of black or brown) from minimum of 3 from here. So 3 is the "must" no. of socks he need to take out. So answer is 3.
Shubham said:
9 years ago
In your bedroom, you have a drawer with 3 yellow, 17 purple, 18 brown, 10 white, 2 green, 5 blue, 11 grey, and 20 orange socks.
It is dark in your bedroom, so you cannot distinguish between the colors of the socks.
So, The Question is How many socks do you need to take out of the drawer to be sure that you have at least three pairs of socks of the same color?
Can anyone answer for this?
It is dark in your bedroom, so you cannot distinguish between the colors of the socks.
So, The Question is How many socks do you need to take out of the drawer to be sure that you have at least three pairs of socks of the same color?
Can anyone answer for this?
Srisakthi said:
9 years ago
@Shubham.
13 socks.
13 socks.
Anonymous said:
9 years ago
How to solve this question? Can you please explain me?
(1)
Arbind kumar sah said:
9 years ago
There may be the possibly the same colour so he must draw 22.
Pranali Mesh said:
8 years ago
6 individual socks are sitting in your drawer: two red, two blue and two purple. It's dark- you can't see.
You pick a first sock uniformly at random and then a second sock from the remaining five. Assume the two choices are independent.
What is the probability you end up with two socks of the same colour?
You pick a first sock uniformly at random and then a second sock from the remaining five. Assume the two choices are independent.
What is the probability you end up with two socks of the same colour?
S Kima said:
8 years ago
A man wears a different colour of socks, he has to take another one (that is to be a matching for any colour of the other two that he is wearing) The question is how many socks to be taken out of a drawer to get a matching pair of sock. As we know, he is already wearing a pair of different colours, So. All he has to get is 3 socks.
Dakshin said:
7 years ago
According to me, the correct answer is 21.
(4)
Abdullah said:
7 years ago
If i take out 3 socks then it may be as follows;
black ---- brown
1 ---- 2
2 ---- 1.
Without this there is no combination. So one matching pair of socks must be. So the answer will be 3.
black ---- brown
1 ---- 2
2 ---- 1.
Without this there is no combination. So one matching pair of socks must be. So the answer will be 3.
Mahesh said:
7 years ago
Hi, according to me, It sounds impractical because one of the socks is going to be different leg.
(1)
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