A rod equals 10 books. Find the number of books and match with the correct pair.
Question 7
Only one of the four options is correct. Write the correct one.
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