For every novel in the school library there are two science books, for each science book there are seven economice books. Express the ratio of economics books to science books to novels in the school library as a triple ratio.

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

Correct Answer: 14 : 2 : 1

Novel : Science = 1 : 2 Science : Economics = 1 : 7 = (1×2) : (7×2) = 2 : 14 So,  Economics : Science : Novel =  14 : 2 : 1
Bissoy MCQ
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