Question

On a shelf, books with green cover and that with brown cover are in the ratio 2:3. If there are 18 books with green cover, then the number of books with brown cover is?


give the answer with the explanation of method along with the logic you, used!

options are:

(A) 12
(B) 24
(C) 27
(D) 36

Answer 1

Answer:

27

Step-by-step explanation:

ratio of books with green cover to that of books with brown cover = 2:3

let number of books covered with brown be x

2 : 3 :: 18 : x

2x = 18 x 3 (product of means is equal to product of extremes)

x = 54/2

x=27

I hope that you have understood the process.

If not, you can ask in comments section.

Thank you