Huge Tub
Algebra
Level
2
Once upon a time, there was a huge tub which had 6 taps. If at first the tub is full, and all of the taps are opened, the tub will be empty in 8 hours. How many hours will it take if there're 4 taps open?
The answer is 12.
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1 solution
If the volume of the water is same, we can just say number of tap opened x hours it takes is equal.
6 x 8 = 4 x a
a = 1 2
1 2