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# If 25 lines are drawn in a plane such that no two of them

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Manager
Joined: 23 Dec 2016
Posts: 60
Location: United States
Concentration: Statistics
Schools: Duke Fuqua
GMAT 1: 720 Q49 V40
GPA: 3.38
If 25 lines are drawn in a plane such that no two of them  [#permalink]

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18 Apr 2017, 07:10
D
Each line will intersect all the other lines
1 line - 24 intersections
Each consecutive line will also have 24 intersections, however we exclude one for because of the repetition
2 line - 23
3 line - 22
...
25 line - 0 intersections
As the numbers are consecutive, the average is equal to the the median and is equal 12. The total number of intersections are 25*12 =300
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Joined: 09 Sep 2013
Posts: 15030
Re: If 25 lines are drawn in a plane such that no two of them  [#permalink]

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25 May 2020, 23:32
Hello from the GMAT Club BumpBot!

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Re: If 25 lines are drawn in a plane such that no two of them   [#permalink] 25 May 2020, 23:32

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