Question 4 As one of the green awareness campaigns, Hijau Bumiku Company gives a

Question

Question 4 As one of the green awareness campaigns, Hijau Bumiku Company gives a guideline to the house resident on classifying the household garbage. The table below shows the classification made by the company. Allowed to put in a barrel Bottle Box Can Snack Cover, Plastic Cloth Newspaper Toys Snack Cover, Food residual Type Can Newspaper Bottle Food Residual Toys Box Cloth Plastic Snack Cover Food Residual, Plastic Using the knowledge in discrete mathematics, what is the fewest number of different barrels need to keep all the garbage in right and clearly state all the possible answers.

Explanation / Answer

First let us list all the unique barrels -

Can , Bottle , Newspaper, Box, Food Residual, Snack Cover, Plastic, Toys, Cloth

Since snack cover and plastic can be put in food residual and snack cover and food residual can be put in plastic, there is no need of the barrel type snack cover.

Hence 8 types of barrels are sufficient. We can remove either of the food residual/plastic/snack cover barrel

There are 9 unique items

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