Question
A tank is to be filled to the brim. Tap E takes 17 minutes to fill the tank while Tap F takes 3 minutes to fill it. How long will it take to completely fill the tank with water if both the taps are turned on at the same time? Leave your answer in minutes and round off to 1 decimal place.
4 m

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A tank is to be filled to the brim. Tap E takes 17 minutes to fill the tank while Tap F takes 3 minutes to fill it. How long will it take to completely fill the tank with water if both the taps are turned on at the same time? Leave your answer in minutes and round off to 1 decimal place.