Permutations And Combinations Question 73
Question: There are 16 points in a plane, no three of which are in a straight line except 8 which are all in a straight line. The number of triangles that can be formed by joining them equals [Kurukshetra CEE 1996, 1998]
Options:
A) 504
B) 552
C) 560
D) 1120
Correct Answer: A $ ^{16}C_3 - ^{8}C_3=504 $
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Answer:
Solution:
BETA
