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Quantitative Aptitude
N Fixed
The maximum n...
Question
The maximum number of points of intersection of
4
circles and
4
straight lines is
A
25
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B
50
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C
56
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D
72
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Solution
The correct option is
B
50
We have
4
circles
4
straight
In such case there would be 3 types of intersections
line and line
4
C
2
.1
=
6........
(
i
)
Line and circle
4
C
.
4
C
1
.2
=
32...
(
i
i
)
circle and circle
4
C
2
.2
=
12...
(
i
i
i
)
So total no of maximum intersection would be
(i)+(ii)+(iii)
=
6
+
32
+
12
=
50
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