Question

The cost of a pencil box is thrice the cost of a pencil . Write a linear equation in two variables to represent this statement. Find four solutions and draw the graph for this equation. (Take the cost of a pencil box to be ₹ x and that of a pencil to be ₹ y)​

Answer 1

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Cost of one pen =Rs.x

Therefore cost of 3 pens=Rs.3x

Cost of one pencil=Rs.y

Therefore cost of 2 pencils =Rs.2y

Then according to question 3x+2y

=Rs.34