Two rails are x + 2y - 4 = 0 and 2x + 4y - 12 = 0. Do they cross?
AYes, at two points
BNo, they are parallel
CYes, at one point
DYes, everywhere
Answer & Solution
Correct answer: B. No, they are parallel
1. The lines never intersect.
2. There is no common solution.
3. So the rails do not cross.
_Source: NCERT Class 10 Mathematics, Chapter 3, Pair of Linear Equations in Two Variables._
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