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If it takes a lion 2 hours to devour a sheep a wolf 3 hours to devour a sheep and a dog 5 hours to devour a sheep How long would it take to devour one sheep if they all ate at the same time?
Shanting
The way to solve this kind of problem is to calculate how much each animal eats in an hour, and add the fractions. (Of course, some assumptions are being made, mainly, that the lions eat at the same rate all the time.)
In an hour, the lion eats 1/2 sheep, the wolf 1/3 sheep, and the dog, 1/5 sheep. Adding the fraction:
1/2 + 1/3 + 1/5 = 15/30 + 10/30 + 6/30 = 31/30. The time it takes all together is the reciprocal of this: 30/31 of an hour, approximately 58 minutes.
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A lion could eat a sheep in 4 hours A leapord could eat one in 5 hours A bear could eat one in 6 hours How long would it take for all of them to devour a sheep if it were thrown among them?
Lion eats 1/4 sheep per hour.Leopard eats 1/5 sheep per hour.Bear eats 1/6 sheep per hour.Working together, they can eat (1/4) + (1/5) + (1/6) sheep per hour.(1/4) + (1/5) + (1/6) = (15/60) + (12/60) + (10/60) = 37/60 sheep per hour.60/37 hours per sheep = 1.6216 hours = 1hr 37min 17.84sec (rounded)
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My somewhat educated guess would be two hours. The person who could complete the job in 3 hours could complete 2/3 of the job in two hours. The person that complete the job in 6 hours could complete 1/3 of the job in two hours. 2/3 + 1/3 = 1.
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Multiply 3 and 5 to get a Least Common Multiple. 15. So you find how many rooms can Alvin paint in 15 hours (5 rooms). Same with Bernie (3 rooms). That means they can paint 8 rooms in 15 hours. Since you want to find "how long it would take," you flip the rate over. In 15 hours they can paint 8 rooms. Reduce if you want, 15/8= 1.875 hour to paint one room.
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Lion takes 2 hours to eat a sheep wolf takes 3 hours dog takes 6 hours if all the 3 animals join together and eat the sheep how long will it take?
1 hour. the lion eats 1 sheep / 2 hours the wolf eats 1 sheep / 3 hours the dog eats 1 sheep / 6 hours add all of that together... 1/2 + 1/3 + 1/6 = 6 sheep / 6 hours = 1 sheep per hour
A lion could eat a sheep in 4 hours A leapord could eat one in 5 hours A bear could eat one in 6 hours How long would it take for all of them to devour a sheep if it were thrown among them?
Lion eats 1/4 sheep per hour.Leopard eats 1/5 sheep per hour.Bear eats 1/6 sheep per hour.Working together, they can eat (1/4) + (1/5) + (1/6) sheep per hour.(1/4) + (1/5) + (1/6) = (15/60) + (12/60) + (10/60) = 37/60 sheep per hour.60/37 hours per sheep = 1.6216 hours = 1hr 37min 17.84sec (rounded)
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Two people are painting a fence one takes 3 hours to complete the job and one takes 6 hours to complete the same job how long would it take for both to complete the same job -?
It would still take six hours.
