The cuboid water tank with the length, width and height of 50cm, 40cm and 60cm respectively is equipped with two upper water inlet pipes a and B. first open pipe a separately, and then open pipe B after a period of time The two pipes feed water together, and the broken line statistical chart below shows the water inflow situation 60 25 thirty fifteen 0 10 20 30 time (seconds) This is a broken line chart. I didn't draw a line. There should be a connecting line between 15 and 25 (1) After () minutes, both pipes a and B enter water at the same time, and the water depth is () cm (2) A, B two water at the same time, water () ml per minute

The cuboid water tank with the length, width and height of 50cm, 40cm and 60cm respectively is equipped with two upper water inlet pipes a and B. first open pipe a separately, and then open pipe B after a period of time The two pipes feed water together, and the broken line statistical chart below shows the water inflow situation 60 25 thirty fifteen 0 10 20 30 time (seconds) This is a broken line chart. I didn't draw a line. There should be a connecting line between 15 and 25 (1) After () minutes, both pipes a and B enter water at the same time, and the water depth is () cm (2) A, B two water at the same time, water () ml per minute

1、（50-20）/（60-40）=3/2；50*40*3/2=3000ML
2. (60-50) / (3 / 2-1 / 2) = 10 seconds

A cuboid is 60cm in length, 30cm in width and 50cm in height. Pour 63L of water into it. How deep is the water?

63L = 63000 CC
Depth = 63000 ÷ (60 × 30) = 35cm
A: the water depth is 35cm

As shown in the figure, if 63L of water is poured into the fish tank, the length is 60cm, the width is 30cm, the height is 50cm, how many cm is the water depth? (the water does not overflow)

60cm=6dm
30cm=3dm
So the water depth is 63 △ 6 △ 3 = 7 / 2DM = 35cm