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The number of triangles formed by join...

The number of triangles formed by joining the vertices of a hexagon is

A

15

B

20

C

19

D

12

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The correct Answer is:
B
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AAKASH SERIES-PERMUTATIONS & COMBINATIONS-PRACTICE EXERCISE
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  18. The number of positive divisors of 2 ^5 , 3^6 ,7^3 is

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  19. The number of all positive divisors of 2 ^5 , 3^4 , 5^3 is

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