How many straight lines can be formed with $6$ points, no three of which are collinear

25

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20

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15

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30

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Solution

The correct option is B $15$
There are $6$ points , no three of which are collinear.
For making straight lines $2$ non -collinear points are required.
Number of straight lines $=^{6} C_{2} = 15$

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How many straight lines can be formed with 6 points, no three of which are collinear

The correct option is B 15There are 6 points , no three of which are collinear.For making straight lines 2 non -collinear points are required.Number of straight lines =6C2=15

How many straight lines can be formed with $6$ points, no three of which are collinear

The correct option is B $15$
There are $6$ points , no three of which are collinear.
For making straight lines $2$ non -collinear points are required.
Number of straight lines $=^{6} C_{2} = 15$