December 26, 2024
Explanation:
(175)
(7 points)
(5 point)
Case I – Choosing 2 points from L1 and 1 point form L2
= 7C2 × 5C1
Case – II – Choosing 2 points form L2 and 1 point form L1
= 5C2 × 7C1
Total case = (7C2 × 5C1) + ( 5C2 × 7C1)
= 35 × 5 + 10 × 7
= 105 + 70 = 175