Question
The figure is not drawn to scale. P and Q are two tanks. The base area of P is 25 cm2 while the base area of Q is 30 cm2. Tank P and Q contained some water and the height of the water level in Tank P was 45 cm as shown. Dan then poured some water from Tank P into Tank Q. After that, the height of the water level in both tanks became 24 cm. What was the height of the water level in Tank Q at first?
3 m

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The figure is not drawn to scale. P and Q are two tanks. The base area of P is 25 cm2 while the base area of Q is 30 cm2. Tank P and Q contained some water and the height of the water level in Tank P was 45 cm as shown. Dan then poured some water from Tank P into Tank Q. After that, the height of the water level in both tanks became 24 cm. What was the height of the water level in Tank Q at first?