KA-0044
about 90sOne tap fills a tank in 6 hours and another fills it in 3 hours. With both running, how long does the tank take to fill?
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Two steps, or one step plus a trap.
3 in a row to finish this ladder.
0/2 solvedOne tap fills a tank in 6 hours and another fills it in 3 hours. With both running, how long does the tank take to fill?