A full water tank, with a hole at the bottom, can hold 160 liters(l) of water.
If the hole is opened for water to drain at a constant speed, the amount of
remaining water after 6 minutes is twice that of the amount of remaining water
after 18 minutes.
How long would it take for the water to drain off if 48 liters is left(remaining)
in the tank?
รบกวนช่วยแก้โจทย์ปัญหาคณิตศาสตร์หน่อยนะคะ (ยากจัง)
A full water tank, with a hole at the bottom, can hold 160 liters(l) of water.
If the hole is opened for water to drain at a constant speed, the amount of
remaining water after 6 minutes is twice that of the amount of remaining water
after 18 minutes.
How long would it take for the water to drain off if 48 liters is left(remaining)
in the tank?