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Schach [20]
3 years ago
9

I do not know-how to do this. Plz help me!

Mathematics
1 answer:
antiseptic1488 [7]3 years ago
6 0
200L / 10L
= 20

Since it takes 1 hour to drain 10L, and in order to get 200L you need to drain 10L 20 times, it will take you 20 hours to drain 20L of water

Answer: 20 hours
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Step-4 : Add up the first 2 terms, pulling out like factors :

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Step-5 : Add up the four terms of step 4 :

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