Question

5 pens and 6 pencils together cost Rs 9 and 3 pens and 2 pencils cost Rs 5. Find the cost of 1 pen and 1 pencil.

Answer 1

Let the cost of a pen be Rs x and that of a pencil be Rs y. Then,

Multiplying equation (i) by 2 and equation (ii) by 6, we get

Subtracting equation (iii) by equation (iv), we get

Hence, cost of one pen = Rs 1.50 and cost of one pencil = Rs 0.25