A) 60
B) 72
C) 62
D) none of these
Correct Answer: C
Solution :
[c] Two circles intersect at two distinct points. Two straight lines intersect at one point. One circle and one straight line intersect at two distinct points. Then the total numbers of points of intersections are as follows;| Number of ways of selection | Points of intersection |
| Two straight lines: \[^{5}{{C}_{2}}\] | \[^{5}{{C}_{2}}\times 1=10\] |
| Two circles: \[^{4}{{C}_{2}}\] | \[^{4}{{C}_{2}}\times 2=12\] |
| One line and circle: \[^{5}{{C}_{1}}{{\times }^{4}}{{C}_{1}}\] | \[^{5}{{C}_{1}}{{\times }^{4}}{{C}_{1}}\times 2=40\] |
| Total | 62 |
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