Question

The cost of 20 books and 36 novels is 2400.What is the cost of 25 books and 45 novels

Answer 1

the answer is above hope it will help you

Answer 2

Cost of 25 books =  1071.4285

Cost of 45 novels =  1928.57

Step-by-step explanation:

Ratio of books and novels , 20 : 36 = 2400

20 : 36 = 2400

5 : 9 = 2400

or ,

14 = 2400

1 = $\frac{2400}{14}$

1 = 171.4285714

Cost of 20 books = 857.14285

Cost of 36 novels = 1542.857

Then ,

Cost of 25 books, 20 books = 857.14285

25 books = $\frac{857.14285}{20}\times 25$

Cost of 25 books = 1071.4285

Again,

Cost of 45 novels , 36 novels = 1542.857

45 novels = $\frac{1542.857}{36}\times 45$

Cost of 45 novels = 1928.57