You work at a store, carrying boxes of grocery items to a storage room located 12 m above the ground. Your employer has asked you to move 30 boxes with a total mass of 150 kg as quickly as possible. You have thought of carrying more than one box up at a time, but you know that this will require you to move very slowly and to rest often. You considered carrying only one box at a time, but that would entail spending most of the energy traveling to and from the storage room. Determine the number of boxes to carry on each trip that would require the least amount of time. If you began the job 8 o’clock in the morning, by what time would you complete the job? Ignore the time needed to go back down the stairs and to lift and unload each box.
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Answer:
It would take 15 Minutes to do this Job
Step-by-step explanation:
First Step: Divide 150 by 30
Second Step: Now Determine that you can carry at least 2 Boxes at a Time ; And Remember that each Box is 5 Kg ; 150 Divided by 30 is 5
Step 3: Now divide 30 by 2
that is 15, so you can do this in 15 Minutes
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