bunnyqueen124
21.12.2019 •
Mathematics
Machine a can fill a bucket from a pipe in 4 minutes. however, machine b can empty the bucket in 6 minutes. starting from empty, if the machines are going at the same time, how long will it take to fill the tank?
is it 12mins
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Ответ:
12 minutes
Step-by-step explanation:
if it fills up in 4 minutes but empties in 6 minutes, that means there's a two minute gap of water sitting - meaning it would multiple attempts to get the bucket filled - taking 12 minutes to be exact - hope this helps!!
Ответ:
the second one
Step-by-step explanation: