For every novel in the library there are 2 science books; for each science book there are 7 economics books. Express the ratio of economics books to science books to novels in the library as a triple ratio.

A 7 : 2 : 1
B 7 : 1 : 2
C 14 : 2 : 1
D 14 : 1 : 2

Correct Answer: 14 : 2 : 1

Let's science = S, Novel = N , Economic = E N: S = 1:2 S:E = 1:7 = 2:14 Now, E:S:N = 14:2:1 Ans.14:2:1
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