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A railway half-ticket costs half the full fare plus a fixed reservation charge.
One full and one half ticket cost Rs + r) = 216).
A full ticket is Rs 144 .
Use substitution to find the reservation charge r (in Rs).

Class 10Substitution MethodAlgebra — Systems of Equations
  • A2
  • B-1
  • C1
  • D0

Step-by-Step Solution

Substitute + r) = 216, . The reservation charge is Rs 0.
Answer: D) 0

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