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24 May 2018, 06:23
Kudos
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D
Be sure to select an answer first to save it in the Error Log before revealing the correct answer (OA)!
Difficulty:
85%
(hard)
Question Stats:
51% (02:16) correct
49%
(02:25)
wrong
based on 186
sessions
History
Date
Time
Result
Not Attempted Yet
Number of surveyors : Number of people surveyed per surveyor
The frequency table above shows the number of surveyors together with the corresponding number of surveyed people per surveyor. What is the value of x?
(1) The average (arithmetic mean) of the number of people surveyed per surveyor is 3
(2) Exactly half of the surveyors have surveyed at most one person
- x : 0
2x : 1
2x : 2
4 : 10
1 : 20
The frequency table above shows the number of surveyors together with the corresponding number of surveyed people per surveyor. What is the value of x?
(1) The average (arithmetic mean) of the number of people surveyed per surveyor is 3
(2) Exactly half of the surveyors have surveyed at most one person
24 May 2018, 12:05
Kudos
Bookmarks
Bunuel
Number of surveyors : Number of people surveyed
x : 0
2x : 1
2x : 2
4 : 10
1 : 20
The frequency table above shows the number of surveyors together with the corresponding number of surveyed people. What is the value of x?
(1) The average (arithmetic mean) of the number of people surveyed per surveyor is 3
(2) Exactly half of the surveyors have surveyed at most one person
x : 0
2x : 1
2x : 2
4 : 10
1 : 20
The frequency table above shows the number of surveyors together with the corresponding number of surveyed people. What is the value of x?
(1) The average (arithmetic mean) of the number of people surveyed per surveyor is 3
(2) Exactly half of the surveyors have surveyed at most one person
statement 1: (0 + 1+ 2 + 10 + 20) / (x + 2x + 2x + 4 + 1) = 33 /(5x +1) = 3 so x can be calculated
statement 2: 2x + x = 2x + 5, from this statement too we can find the value of x
Hence both the statement alone is sufficient (D)
18 Dec 2023, 07:58
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Bunuel, need more clarity on statement 2.
