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Mathematics, 05.05.2020 06:42 golderhadashaowtatz
If it takes 6 men 4 days to dig a hole 3 metres deep, how long will it take 10 men to dig a hole 7 metres deep?
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If it takes 6 men 4 days to dig a hole 3 metres deep, how long will it take 10 men to dig a hole 7 m...
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