We know the dimensions of the rectangular carton. And we also know that the hight of a can is 15cm – equal to the hight of the carton. That means that we can have only one level of cans. In order to find out how many cans, we need to find out the cans’ radius or diameter. When we devide the length and the width of the carton with the diameter of the can – we will learn how many cans can fit.
(1) r=4, so diameter is 8. sufficient

(2) 6 cans fit the lenght – so we can calaculate the diameter as 48/6 – sufficient

Answer choice: C

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