W and X are two rectangular tanks. The base area of W is 300 cm2 and the base of X has dimensions as shown. Tank W contained 9000 cm3 of water and Tank X was empty.
- What was the height of the water level in W?
- Oliver poured some water from Tank W into Tank X without spilling. After that, the height of the water level of Tank W was the same as that of Tank X. How much water did Oliver pour into Tank X?