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A man's total travel expense over 3 days was $42. What was his median

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Math Expert
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A man's total travel expense over 3 days was $42. What was his median  [#permalink]

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New post 25 Nov 2019, 02:59
00:00
A
B
C
D
E

Difficulty:

  55% (hard)

Question Stats:

60% (01:28) correct 40% (01:03) wrong based on 65 sessions

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Re: A man's total travel expense over 3 days was $42. What was his median  [#permalink]

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New post 25 Nov 2019, 05:05
d1+d2+d3=42

#1
d2=12
so d1+d3 = 30 ; or say each day 15 or it can be any value to sum = 30 insufficient ( 12,15,15) ( 10,12,20) so on

#2
d1= 14
so d2+d3 = 28
d2=d3=14
median = 14
IMO B
sufficient

Bunuel wrote:
A man's total travel expense over 3 days was $42. What was his median expense?

(1) On day 2, he spent $12

(2) On day 1, he spent $14


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Re: A man's total travel expense over 3 days was $42. What was his median  [#permalink]

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New post 30 Nov 2019, 05:53
Archit3110 although you get the right answer but solution is not correct.
you cannot assume that D2 = D3
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Re: A man's total travel expense over 3 days was $42. What was his median  [#permalink]

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New post 09 Jan 2020, 03:42
Archit3110 wrote:
d1+d2+d3=42

#1
d2=12
so d1+d3 = 30 ; or say each day 15 or it can be any value to sum = 30 insufficient ( 12,15,15) ( 10,12,20) so on

#2
d1= 14
so d2+d3 = 28
d2=d3=14
median = 14
IMO B
sufficient

Bunuel wrote:
A man's total travel expense over 3 days was $42. What was his median expense?

(1) On day 2, he spent $12

(2) On day 1, he spent $14


Are You Up For the Challenge: 700 Level Questions



What if in st-2 12 and 16 0r 10 and 18.....
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Re: A man's total travel expense over 3 days was $42. What was his median  [#permalink]

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New post 09 Jan 2020, 03:51
avirup2018 wrote:
Archit3110 wrote:
d1+d2+d3=42

#1
d2=12
so d1+d3 = 30 ; or say each day 15 or it can be any value to sum = 30 insufficient ( 12,15,15) ( 10,12,20) so on

#2
d1= 14
so d2+d3 = 28
d2=d3=14
median = 14
IMO B
sufficient

Bunuel wrote:
A man's total travel expense over 3 days was $42. What was his median expense?

(1) On day 2, he spent $12

(2) On day 1, he spent $14


Are You Up For the Challenge: 700 Level Questions



What if in st-2 12 and 16 0r 10 and 18.....


In any case the median is 14. No?

The point is that if the expenses on any day is $14, then we are left with $28 for the other two days and no matter how you break those $28, $14 will be the median.
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Re: A man's total travel expense over 3 days was $42. What was his median   [#permalink] 09 Jan 2020, 03:51
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