Question

8. The cost of 10 pencils is 125 and the cost of 5 chart papers is £10. How much money will
you need to buy 5 pencils and 7 chart papers?​

Answer 1

Answer:

Step-by-step explanation:

The cost of 10 pencil = Rs. 25

So, the cost of one pencil = 25 ÷ 10 = Rs. 2.5 ...(i)

The cost of 5 charts = Rs. 10

So, the cost of one chart = 10 ÷ 5 = Rs. 2  ....(2)

Therefore the cost of 5 pencils and 7 charts = (5 × 2.5) + (7 × 2) = 12.5 + 14 =Rs. 16.5