Question
The figure is not drawn to scale. C and D are two tanks. The base area of C is 14 cm2 while the base area of D is 20 cm2. Tank C and D contained some water and the height of the water level in Tank C was 44 cm as shown. Dan then poured some water from Tank C into Tank D. After that, the height of the water level in both tanks became 22 cm. What was the height of the water level in Tank D at first?
3 m

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The figure is not drawn to scale. C and D are two tanks. The base area of C is 14 cm2 while the base area of D is 20 cm2. Tank C and D contained some water and the height of the water level in Tank C was 44 cm as shown. Dan then poured some water from Tank C into Tank D. After that, the height of the water level in both tanks became 22 cm. What was the height of the water level in Tank D at first?