Question

11. Cost of 5 books and 4 notebooks is 100. If the cost of one book is *₹12, find the cost of one notebook - ​

Answer 1

Answer:

hope it helps u

Step-by-step explanation:

cost of one book = 12

therefore ,cost of 5 books =12*5 =60

hence, the cost of 4 notebooks =100-60=40

so ,cost of 1 notebook =40/4 =10

Answer 2

Total Cost = ₹ 100
A.T.Q
5y + 4x = ₹ 100
We Know,
Cost of 1 book = ₹ 12
Cost of 5 books = 12 * 5 = 60
Now, 5y = 60
Cost of 4 notebooks will be = 100 - 60 = ₹40
Cost of 4 notebooks = ₹40
Cost of 1 notebook= 40/4= ₹10