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# If the numbers 1, 2, 3, and 4 are randomly selected, and no number can

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Math Expert
Joined: 02 Sep 2009
Posts: 58423
If the numbers 1, 2, 3, and 4 are randomly selected, and no number can  [#permalink]

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27 Feb 2019, 04:40
1
00:00

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(N/A)

Question Stats:

92% (01:01) correct 8% (00:59) wrong based on 53 sessions

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If the numbers 1, 2, 3, and 4 are randomly selected, and no number can be selected more than once, then what is the probability that the numbers are selected in ascending numerical order?

A. 1/24

B. 1/12

C. 5/24

D. 9/24

E. 2/3

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Posts: 5027
Location: India
Concentration: Sustainability, Marketing
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Re: If the numbers 1, 2, 3, and 4 are randomly selected, and no number can  [#permalink]

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Updated on: 28 Feb 2019, 03:04
1
Bunuel wrote:
If the numbers 1, 2, 3, and 4 are randomly selected, and no number can be selected more than once, then what is the probability that the numbers are selected in ascending numerical order?

A. 1/24

B. 1/12

C. 5/24

D. 9/24

E. 2/3

1/4*1/3*1/2*1/1 = 1/24
IMO A

Bunuel ; is the answer given correct?

Originally posted by Archit3110 on 27 Feb 2019, 05:42.
Last edited by Archit3110 on 28 Feb 2019, 03:04, edited 1 time in total.
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Joined: 17 May 2018
Posts: 140
Location: India
Re: If the numbers 1, 2, 3, and 4 are randomly selected, and no number can  [#permalink]

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27 Feb 2019, 06:35
1
Total number of ways the 4 numbers can be selected=4!=24
The way the numbers can be chosen to be in ascending order is only 1.
So the ans is option A 1/24

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Math Expert
Joined: 02 Sep 2009
Posts: 58423
Re: If the numbers 1, 2, 3, and 4 are randomly selected, and no number can  [#permalink]

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28 Feb 2019, 03:07
Archit3110 wrote:
Bunuel wrote:
If the numbers 1, 2, 3, and 4 are randomly selected, and no number can be selected more than once, then what is the probability that the numbers are selected in ascending numerical order?

A. 1/24

B. 1/12

C. 5/24

D. 9/24

E. 2/3

1/4*1/3*1/2*1/1 = 1/24
IMO A

Bunuel ; is the answer given correct?

It's A. Edited. Thank you.
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Re: If the numbers 1, 2, 3, and 4 are randomly selected, and no number can   [#permalink] 28 Feb 2019, 03:07
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