How many straight lines can be drawn with 26 points on a plane of which no points are collinear?

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15 Dec 2021 straight line

How many straight lines can be drawn with 26 points on a plane of which no points are collinear?

OPtion

1. 125
2. 153
3. 255
4. 225
5. 325
6. 275
7. 230
8. 330
9. 335
10. None of the above

Solution

The required number of straight lines
= n (n – 1)/2 =
= 26 (26 – 1)/2
= 26 * 25 / 2
= 650/2
= 325

Correct Option: 5 Best Solution (3)