1)Five club officers to go camping and they packed enough water to last for 12 days . Just as they are about to leave ,they are joined by 5 more officers .How long will their water last now ?
2) The action research takes 100 days to complete if 3 people work on it .How many people are required to complete the action research in 60 days ?
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Answers
Step-by-step explanation:
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Given : Five club officers want to go camping and they packed enough water to last for 12 days.
Just as they are about to leave, they are joined by 5 more
officers.
To Find : How long will their water last now
Solution:
Let say one person drink water daily = x unit
then 5 persons drink water daily = 5x unit
=> 5 persons drink water in 12 days = 12 * 5x = 60x unit
They are joined by 5 more people
so Now total people = 5 + 5 = 10
10 people drink in 1 day = 10x unit
water last = 60x / 10x = 6 days
water will last for 6 days
100 * 3 = 300 man days
60 days
Hence people required = 300 / 60 = 5
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