Question

Five pens and four pencils cost as much as three pens and seven pencils. What is the ratio of the cost of One pen to the cost of One Pencil?

Answer 1

Answer:

Ratio = 3 / 2

Step-by-step explanation:

Let cost of one pen be x and cost of one pencil be y.

5x + 4y = 3x + 7y ------> As they cost the same

5x - 3x = 7y - 4y

2x = 3y

x / y = 3 / 2

The ratio of cost of 1 pen : 1 pencil = 3 : 2

Hope this helps! :)