Question 33
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5 points lie on one line and 6 on a parallel line. How many quadrilaterals have their vertices among them?
- A 330
- B 135
- C 150 Correct
- D 75
Correct Answer: Option C
A quadrilateral needs 2 points from each line
5C2 × 6C2 = 10 × 15 = 150
Trap: 330 = 11C4 allows 3 points on one line.
Answer: 150
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