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Retired Moderator
Joined: 16 Apr 2020
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Location: India
WE:Education (Education)
A certain circular stopwatch has exactly 60 second marks and a single
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04 Mar 2021, 10:59
04 Mar 2021, 10:59
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Question Stats:
31% (02:41) correct
68% (01:48) wrong based on 16 sessions
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A certain circular stopwatch has exactly 60 second marks and a single hand. If the hand of the watch is randomly set to one of the marks and allowed to count 10 seconds, what is the probability that the hand will stop less than 10 marks from the 53-second mark?
A. \(\frac{1}{6}\)
B. \(\frac{19}{60}\)
C. \(\frac{1}{3}\)
D. \(\frac{29}{60}\)
E. \(\frac{1}{2}\)
A. \(\frac{1}{6}\)
B. \(\frac{19}{60}\)
C. \(\frac{1}{3}\)
D. \(\frac{29}{60}\)
E. \(\frac{1}{2}\)
Re: A certain circular stopwatch has exactly 60 second marks and a single
[#permalink]
05 Mar 2021, 04:34
05 Mar 2021, 04:34
1
1
B and D are the same answer. I got this wrong because I selected D.
Retired Moderator
Joined: 16 Apr 2020
Status:Founder & Quant Trainer
Affiliations: Prepster Education
Posts: 1546
Given Kudos: 172
Location: India
WE:Education (Education)
Re: A certain circular stopwatch has exactly 60 second marks and a single
[#permalink]
05 Mar 2021, 07:59
05 Mar 2021, 07:59
lassolasso wrote:
B and D are the same answer. I got this wrong because I selected D.
lassolasso
Thank you so much. I have made the required change!
