Permutations And Combinations Question 333
Question: There are 10 points in a plane, no three are collinear, except 4 which are collinear. All points are joined. Let L be the number of different straight lines and T be the number of different triangles, then
Options:
A) $ T=120 $
B) $ L=40 $
C) $ T=3L-5 $
D) None of these
Correct Answer: B
Show Answer
Answer:
Solution:
BETA
