14. One day, it is typhoon weather, and the rain is falling uniformly. A rectangular container as shown in Figure 1 is placed in the rain, and it takes 1 hour to fill the container with rainwater.

Please answer: How long will it take for the rain to fill the three different containers shown in Figure 2, respectively?



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14. One day is a typhoon, the rain keeps falling uniformly. A rectangular container as shown in Figure 1 is placed in the rain, and it takes 1 hour to fill the container with rainwater.
Question: How long will it take for the rain to fill the three different containers shown in Figure 2?
【Solution】The volume of the rectangular container shown in Figure 1: $10 \times 10 \times 30=3000$ (cubic centimeters)
The area of the water intake: $10 \times 30=300$ (square centimeters)
The amount of water collected per square centimeter per hour: $3000 \div 300 \div 1=10$ (cubic centimeters)
Therefore, for Figure (1): $10 \times 10 \times 30 \div(10 \times 10 \times 10)=3$ (hours)
For Figure (2): $(10 \times 10 \times 20+10 \times 10 \times 10) \div(10 \times 10 \times 20)=1.5$ (hours)
For Figure (3): $2 \div 2=1$ (centimeter)
$3.14 \times 1 \times 1 \times 20 \div(3.14 \times 1 \times 10)=2$ (hours)
Answer: Container (1) needs 3 hours, Container (2) needs 1.5 hours, Container (3) needs 2 hours.