Question

The cost of a pencil is ₹ x and the cost of a pen is ₹ y. if the cost of 3 pencils and 2 pens is ₹ 20. A linear equation in two variables is

Answer 1

Answer:

3x + 2y = 20

Step-by-step explanation:

According to your question,

The linear equation in two variables is----

3x + 2y = 20

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Answer 2

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Cost of one pencil =Rs.x

Therefore cost of 3 pencils=Rs.3x

Cost of one pen=Rs.y

Therefore cost of 2 pen=Rs.2y

Then according to question 3x+2y=Rs.20