Question
Wendy placed three empty tanks side by side. The smallest tank has a crack at its side and the base area of each tank is 49 cm2. After she turned on the tap for 70 minutes, the height of the water in the smallest tank became 3 cm although 0.4 mℓ of water is leaking out of the crack per minute. Find the rate of flow of water from the tap. Give your answer in mℓ/min.
3 m

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Wendy placed three empty tanks side by side. The smallest tank has a crack at its side and the base area of each tank is 49 cm2. After she turned on the tap for 70 minutes, the height of the water in the smallest tank became 3 cm although 0.4 mℓ of water is leaking out of the crack per minute. Find the rate of flow of water from the tap. Give your answer in mℓ/min.