One pump fills a tank 3 times as fast as another pump. If the pumps work together, they fill the tank in 12 minutes. How long does it take for the faster pump to fill the tank?
Well I think in 4 mins because the faster pump pumped 3 times faster and they fill the tank in 12 mins so yea cause 12 divided by 3 but not 100% sure I'm using mental math