Please enter the following details
Free Daily Targets & Mocks
Study Material & Formulas PDFs
1 on 1 Mentorship
Question 90
The number of straight lines that can be drawn in a plane with 23 given points assuming that no three of them are collinear is
Solution
The number of ways of drawing straight lines from 23 points is $$ C_2^{23}$$
solving, we get the number of ways = $$\frac{23!}{21!2!}$$
= 253
Create a FREE account and get:
- Download RRB Study Material PDF
- 45+ RRB previous papers with solutions PDF
- 300+ Online RRB Tests for Free
