Latest TCS Aptitude Question SOLUTION: in a plane there are 37 straight lines, of which 13 pass through the point a and 11 pass through the point b. besides no three lines pass through one point,no line passes through b

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(#M40013346) TCS question Keep an EYE

in a plane there are 37 straight lines, of which 13 pass through the point a and 11 pass through the point b. besides no three lines pass through one point,no line passes through both points a and b and no two are parallel.the no. of points of intersection of the straight lines.

Asked In TCS charan (11 years ago)

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amrendra kumar  (11 years ago)

all lines in a plane, no line parallel, no three lines passes through same point point of intersection 37C2

ii lines passes through same point A, then point of intersection decreased by 11C2 -1

i3 lines passes through same point B, then point of intersection decreased by 13C2 -1

so no of intersection points = 37C2 – (11C2 – 1) – (13C2 – 1)

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