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There are 10 points in a plane , out of ...

There are 10 points in a plane , out of these 6 are collinear .if N is number of triangles formed by joining these points , then

A

`100ltNle140`

B

`140ltNle190`

C

`Nlt190`

D

`Nle100`

Text Solution

Verified by Experts

Clearly, `N=""(10)C_(3)-""^(6)C_(3)=100` i.e. `Nle100`
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