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

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

Grade:12

1 Answers

Harshit Singh
askIITians Faculty 5963 Points
3 years ago
Dear Student

Option (C) is correct here.
From the question it is given that,
On a shelf, books with green cover and that with brown cover are in the ratio 2:3
There are 18 books with green cover
So, let us assume the common factor of 2 and 3 be x.
Then, 2x = 18

x = 18/2
Divide both numerator and denominator by 2.

x =9
Therefore, the number of books with brown cover is = 3x
= 3 × 9

= 27


Thanks

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