If a carton containing a dozen glass is dropped, which of the following cannot be the ratio of unbroken glasses to broken glasses

A) 2 : 1

B) 3 : 1

C) 3 : 2

D) 7 : 5

Correct answer:
C) 3 : 2

Description for Correct answer:
For dividing 12 into two whole number, sum of the terms of the ratio must be a factor of 12. So, they cannot be in the ratio 3 : 2


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