NDA2020MathematicsPermutation and CombinationActual
What is the maximum number of points of intersection of 5 non-overlapping circles?
Options
- A10
- B15
- C20
- D25
Correct answer
C. 20
Step-by-step solution
Maximum number of points of intersection of 2 nonoverlapping circles =2 . So, maximum number of points of intersection of 5 nonoverlapping circles =8+6+4+2=20 .