Change the water for a swimming pool that is 50 meters long, 30 meters wide and 1.5 meters deep. When the water is 30 cm away from the edge of the pool, close the water inlet valve. How many cubic meters of water are there in the pool?

Change the water for a swimming pool that is 50 meters long, 30 meters wide and 1.5 meters deep. When the water is 30 cm away from the edge of the pool, close the water inlet valve. How many cubic meters of water are there in the pool?

30 cm = 0.3 m, 50 × 30 × (1.5-0.3), = 1500 × 1.2, = 1800 (cubic meters). A: there is 1800 cubic meters of water in the swimming pool

A swimming pool is 50 meters long and 30 meters wide, with an average depth of 2 meters. The inner wall and bottom are coated with cement. If the average water depth is 1.8 meters, how many cubic meters can it hold?

If the average water depth is 1.8 meters, the condition of "the inner wall and the bottom are coated with cement" is useless. Then, the answer is: 50 * 30 * 2 = 3000 (cubic meters)

A swimming pool is 50 meters long and 20 meters wide. If 2250 cubic meters of water is injected into it, how deep is it?

Volume of rectangle = length * width * height
Then water depth (height) = volume ／ length ／ width = 2250 ／ 50 ／ 20 = 2.25 (m)
PS: it's such a simple question. Listen carefully in class~

A swimming pool is 50 meters long and 25 meters wide. The water inlet pipe of the pool is 300 cubic meters per hour, and it is filled up in 10 hours. How deep is the pool?

50 * 25 = 1250 cubic meters
300 * 10 = 3000 cubic meters
3000/1250=2.4m