Question

In a library the ratio of English books to Math books is the same as the ratio of Math books to Science book. If there are 1200 books on English and 1800 books on Math, find the number of Science books.

Answer 1

Answer:

there are 2700 science books

Step-by-step explanation:

let number of english books be x

let the number of maths book be y

let the number of science book be z

ATQ,

x:y=y:z

x= 1200 (given)

y= 1800 (given)

so, 1200/1800 = 1800/z

2/3=1800/z

cross multiplication, 2z= 3*1800

z= 2700 books