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To qualify for an interview for a computer-programming job
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10 Mar 2021, 04:04
10 Mar 2021, 04:04
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Question Stats:
47% (01:15) correct
52% (01:44) wrong based on 21 sessions
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To qualify for an interview for a computer-programming job, each candidate must be able to program in at least one of three specified computer languages. Of the 15 candidates who qualify for an interview, 3 can program in all three of the specified languages and 4 can program in only one of the specified languages
A) Quantity A is greater.
B) Quantity B is greater.
C) The two quantities are equal.
D) The relationship cannot be determined from the information given.
Quantity A |
Quantity B |
The number of candidates who qualify for an interview and who can program in at least two of the specified languages |
9 |
A) Quantity A is greater.
B) Quantity B is greater.
C) The two quantities are equal.
D) The relationship cannot be determined from the information given.
Re: To qualify for an interview for a computer-programming job
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10 Mar 2021, 04:41
10 Mar 2021, 04:41
Expert Reply
The OA is missing
Please add it
Please add it
Re: To qualify for an interview for a computer-programming job
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10 Mar 2021, 10:14
10 Mar 2021, 10:14
1
Group theory question.
Short answer: all candidates qualify, so to know who can program more than 1 language, subtract from the total those who only know 1 language. 15 - 4 = 11
Long answer:
Condition to qualify: must know at least 1 programming language. In mathematical terms:
p >= 1
candidates = c = 15 (all of them qualify, so all p >=1)
3 know 3 languages
4 know only 1 language
Number of people who know at least 2 languages (p >=2): qualified candidates - those who do NOT know at least 2 languages
= 15 - 4 = 11
My answer is A.
Posted from my mobile device
Short answer: all candidates qualify, so to know who can program more than 1 language, subtract from the total those who only know 1 language. 15 - 4 = 11
Long answer:
Condition to qualify: must know at least 1 programming language. In mathematical terms:
p >= 1
candidates = c = 15 (all of them qualify, so all p >=1)
3 know 3 languages
4 know only 1 language
Number of people who know at least 2 languages (p >=2): qualified candidates - those who do NOT know at least 2 languages
= 15 - 4 = 11
My answer is A.
Posted from my mobile device
