Math, asked by Anonymous, 1 month ago

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Answered by raviv302

Answer:

5 days

Step-by-step explanation:

their one days work = 1/12 + 1/15 + 1/20 = (5 + 4 + 3,)/60 = 12/60 rhis is equal to 1/5, Now if they ca do 1/5 of the work in one day, they will take 5 days to complete the work

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