Question

The cost of 6 books is equal to the cost of 10 notebooks.how many books can one get at the cost of 25 notebooks?

Answer 1

15 is the answer...

Answer 2

Answer:

15

Step-by-step explanation:

Let cost of 1 book be x and cost of 1 notebook be y

So, cost of 6 books = 6x

Cost of 10 notebooks = 10y

We know,

6x=10y

3x=5y

Multiple both sides by 5

15x=25y

So, we can buy 15 books at the cost of 25 notebooks