Answer:
2h 24 min
Step-by-step explanation:
The number of plumbers is constant. We can therefore choose to omit them from our calculations.
10 taps can be done in 2h
What about 12 taps.
This calls for cross multiplication.
(12*2)/10
this gives you 2.4 hrs
to get your answer in standard time format...
(4/10)*60
giving you 24
final answer is 2h 24 min
