Number of solutions of $x + 2y = 4,\ 2x + 4y = 8$ is

Number of solutions of $x + 2y = 4,\ 2x + 4y = 8$ is
  1. infinite
  2. $1$
  3. $0$
  4. $2$

Solution

Second equation is $2 \times$ first, so coincident lines.

Asked in: MH-SSC-9

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