Life Situation 2: Tiring Chores
It is 11 p.m. and you want to sleep, but your parents want you to finish some chores. There are 5 chores and the amount of time needed to finish each chore.
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3 minutes: Putting the clothes to the dryer
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14 minutes: Dry the clothes using the dryer
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3 minutes: Taking the clothes out of the dryer
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5 minutes: Take the trash out
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9 minutes: Wash the dishes by hand
Some chores do not require you to be there till it is done so you can do the other chores, e.g. You can wash the dishes while the clothes are being dried in the dryer. Some chores also need to be done before the other chores
You are very tired and want to finish the chores as fast as possible. What is the least amount of time needed to finish all the chores?
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5 solutions
Some chores do not require you. It's the key. you will see that 14 min drying clothes is that. Other two putting clothes 3 min and taking clothes 3 min is to be done before and after 14 min drying. now that's your free time. the other two work like take the trash and wash the dishes both take 5 min and 9 min that means total 14 min. so you can do that in the middle of 14 min drying. that's why the answer is 3 min + 14 min + 3 min = 20 min.