Come on guys

Probability Level 2

In a musical chair game, the person playing the music has been advised to stop playing the music at any time within 2 minutes after he starts playing. what is the probability that the music will stop within the first half minute after starting?

\dfrac 27

\dfrac 24

\dfrac 34

\dfrac 47

\dfrac 29

\dfrac 14

1 solution

Ashish Menon
Feb 1, 2016

Prathamesh, this was a question asked on facebook . The appropriate answer is 29/119 which is approximately1/4. Given that the music will stop within 2 minutes = 120 seconds So the music should stop from 1 second to 119 seconds. half a minute = 30 seconds Less than half a minute means from 1 second to 29 seconds. Probability of stopping the music within half minute = 29/119

Ashish , i got this question not from facebook but from a book named R.D sharma . It is clearly mentioned that 1/4 is the answer

Prathamesh Samal - 5 years, 4 months ago

ok, might be they considered 1to 120 seconds and 1 to 30 seconds. Anyway both the wways are same. Thanks for the question anyways.

Ashish Menon - 5 years, 4 months ago

Ashish your way and my way is different . no problem . i just want to ask that by your method are you getting 1/4 or is the answer something . According to me i think the answer is 1/4. I guess your answer is the same .

Prathamesh Samal - 5 years, 4 months ago

@Prathamesh Samal – Yes, I just considered 1 to 29 seconds and 1 to 119 seconds. Anyway both are $99.99\%$ same, $BRO$

Ashish Menon - 5 years, 4 months ago

Come on guys

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