please answer  fast

please answer  fast 28. There are two taps opening into a water tank. Ifboth are opened, the tank will be filled in 12 minutes. The time taken by the smaller tap alone to fill the tank is I O minutes more than that taken by the larger tap alone. a) If two taps are opened simultaneously, what portion Of the tank will be filled in 6 minutes? b) What portion of the tank would be filled in one minute if both the taps are opened ? e) Find the time taken by the smaller tap alone to fill the tank.