Question
The figure is not drawn to scale. H and J are two tanks. The base area of H is 20 cm2 while the base area of J is 14 cm2. Tank H and J contained some water and the height of the water level in Tank H was 41 cm as shown. Dan then poured some water from Tank H into Tank J. After that, the height of the water level in both tanks became 27 cm. What was the height of the water level in Tank J at first?
3 m

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The figure is not drawn to scale. H and J are two tanks. The base area of H is 20 cm2 while the base area of J is 14 cm2. Tank H and J contained some water and the height of the water level in Tank H was 41 cm as shown. Dan then poured some water from Tank H into Tank J. After that, the height of the water level in both tanks became 27 cm. What was the height of the water level in Tank J at first?