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# A researcher plans to identify each participant in a certain medical

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Status: The journey is always more beautiful than the destination
Affiliations: Computer Science
Joined: 24 Apr 2017
Posts: 54
Location: India
Concentration: Statistics, Strategy
GMAT 1: 570 Q40 V28
GPA: 3.14
A researcher plans to identify each participant in a certain medical  [#permalink]

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04 Apr 2018, 06:35
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Question Stats:

0% (00:00) correct 100% (00:32) wrong based on 4 sessions

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Book Question: 182

A researcher plans to identify each participant in a certain medical experiment with a code consisting of either a single letter or a pair of distinct letters written in alphabetical order. What is the least number of letters that can be used if there are 12 participants, and each participant is to receive a different code?

A. 4
B. 5
C. 6
D. 7
E. 8

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Joined: 02 Sep 2009
Posts: 50042
Re: A researcher plans to identify each participant in a certain medical  [#permalink]

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04 Apr 2018, 06:39
Nixondutta wrote:
Book Question: 182

A researcher plans to identify each participant in a certain medical experiment with a code consisting of either a single letter or a pair of distinct letters written in alphabetical order. What is the least number of letters that can be used if there are 12 participants, and each participant is to receive a different code?

A. 4
B. 5
C. 6
D. 7
E. 8

Please search before posting: https://gmatclub.com/forum/a-researcher ... 34584.html

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Re: A researcher plans to identify each participant in a certain medical &nbs [#permalink] 04 Apr 2018, 06:39
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