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A circular racetrack is 3 miles in length and has signs
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27 Sep 2021, 05:12
27 Sep 2021, 05:12
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Question Stats:
45% (01:40) correct
54% (02:10) wrong based on 31 sessions
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A circular racetrack is 3 miles in length and has signs posted to indicate each 1/10 mile increment. If a race car starts at a random location on the track and travels exactly one half mile, what is the probability that the car ends within a half mile of the sign indicating 2 1/2 miles?
(A) 1/6
(B) 3/10
(C) 1/3
(D) 1/2
(E) 2/3
(A) 1/6
(B) 3/10
(C) 1/3
(D) 1/2
(E) 2/3
A circular racetrack is 3 miles in length and has signs
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27 Sep 2021, 07:45
27 Sep 2021, 07:45
1
Total track length \(= 3\) miles
Probability of the car within a half-mile of the sign indicating \(2\frac{1}{2}\) miles
So the car must be between the sign indicators showing \(2 - 3\) miles
So it must be in \(1\) mile portion of the total \(3\) miles track.
The probability \(= \frac{1}{3}\)
Answer C
Probability of the car within a half-mile of the sign indicating \(2\frac{1}{2}\) miles
So the car must be between the sign indicators showing \(2 - 3\) miles
So it must be in \(1\) mile portion of the total \(3\) miles track.
The probability \(= \frac{1}{3}\)
Answer C
Re: A circular racetrack is 3 miles in length and has signs
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27 Oct 2023, 12:55
27 Oct 2023, 12:55
rx10 wrote:
Total track length \(= 3\) miles
Probability of the car within a half-mile of the sign indicating \(2\frac{1}{2}\) miles
So the car must be between the sign indicators showing \(2 - 3\) miles
So it must be in \(1\) mile portion of the total \(3\) miles track.
The probability \(= \frac{1}{3}\)
Answer C
Probability of the car within a half-mile of the sign indicating \(2\frac{1}{2}\) miles
So the car must be between the sign indicators showing \(2 - 3\) miles
So it must be in \(1\) mile portion of the total \(3\) miles track.
The probability \(= \frac{1}{3}\)
Answer C
Sir, please explain further. I am not too sure.
