প্রশ্ন ও উত্তর
One pipe can fill a pool in 6 hours and a second pipe can fill the same pool in 12 hours. If both pipes work together, how long will it take to fill the pool?
গণিত Pipe and Tank 07 Oct, 2020
প্রশ্ন One pipe can fill a pool in 6 hours and a second pipe can fill the same pool in 12 hours. If both pipes work together, how long will it take to fill the pool?
সঠিক উত্তর
4 hours
মন্তব্য
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