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What is the greatest integer in a set of five different positive integ
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Updated on: 30 Oct 2019, 23:03
Bunuel wrote:
What is the greatest integer in a set of five different positive integers if 1 is the smallest integer in the set?
(1) The average (arithmetic mean) of all integers is 4 and the median of the set is also 4. (2) The set contains only 1 even number.
set S= (1,a,b,c,d) #1 The average (arithmetic mean) of all integers is 4 and the median of the set is also 4. S= (1,a,4,c,d) ; sum = 20 a+c+d= 15 now we can have many possibilities of having greatest integers (3,5,7) , (2,6,7), (2,5,8) insufficient #2 The set contains only 1 even number other info not know insufficient from 1 &2 only possibility is (1,3,4,5,7) greatest = 7 IMO C
Originally posted by Archit3110 on 30 Oct 2019, 08:52.
Last edited by Archit3110 on 30 Oct 2019, 23:03, edited 3 times in total.
Re: What is the greatest integer in a set of five different positive integ
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30 Oct 2019, 16:17
Hello there! (10,3,2) pair is not valid as median will change to 3. Rest of the explanation is perfect.
Archit3110 wrote:
Bunuel wrote:
What is the greatest integer in a set of five different positive integers if 1 is the smallest integer in the set?
(1) The average (arithmetic mean) of all integers is 4 and the median of the set is also 4. (2) The set contains only 1 even number.
set S= (1,a,b,c,d) #1 The average (arithmetic mean) of all integers is 4 and the median of the set is also 4. S= (1,a,4,c,d) ; sum = 20 a+c+d= 15 now we can have many possiblities of having greatest integers (10,3,2) or (9,2,4) or (7,5,3) insufficient #2 The set contains only 1 even number other info not know insufficient from 1 &2 only possibility is (1,3,4,5,7) greatest = 7 IMO C
Hello there! (10,3,2) pair is not valid as median will change to 3. Rest of the explanation is perfect.
Archit3110 wrote:
Bunuel wrote:
What is the greatest integer in a set of five different positive integers if 1 is the smallest integer in the set?
(1) The average (arithmetic mean) of all integers is 4 and the median of the set is also 4. (2) The set contains only 1 even number.
set S= (1,a,b,c,d) #1 The average (arithmetic mean) of all integers is 4 and the median of the set is also 4. S= (1,a,4,c,d) ; sum = 20 a+c+d= 15 now we can have many possiblities of having greatest integers (10,3,2) or (9,2,4) or (7,5,3) insufficient #2 The set contains only 1 even number other info not know insufficient from 1 &2 only possibility is (1,3,4,5,7) greatest = 7 IMO C
What is the greatest integer in a set of five different positive integ
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30 Oct 2019, 21:36
Archit3110 wrote:
Bunuel wrote:
What is the greatest integer in a set of five different positive integers if 1 is the smallest integer in the set?
(1) The average (arithmetic mean) of all integers is 4 and the median of the set is also 4. (2) The set contains only 1 even number.
set S= (1,a,b,c,d) #1 The average (arithmetic mean) of all integers is 4 and the median of the set is also 4. S= (1,a,4,c,d) ; sum = 20 a+c+d= 15 now we can have many possiblities of having greatest integers (9,2,4) or (7,5,3) insufficient #2 The set contains only 1 even number other info not know insufficient from 1 &2 only possibility is (1,3,4,5,7) greatest = 7 IMO C
Hi
In (9,2,4) isnot 4 repeated , but we are told they are unique integers so how is this possible? if median is 4 then others be less than 4 or greather than 4 if numbers are unique.Plz clear
Re: What is the greatest integer in a set of five different
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25 Nov 2019, 02:26
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