Two fifth grade practical questions and two fifth grade practical questions

A swimming pool is 50 meters long, 25 meters wide and 3 meters deep from the inside, if 200 cubic meters of water are injected per hour, how long does it take to reach a depth of 2 meters?

hours) a cuboid carton with a length of meters, a width of meters, and a volume of cubic meters. then the height is:

m) What is the minimum square meter occupied by this carton?

square meters) What is the maximum square meter?

3 sq.m.).

The first question is 50*25*2=2500

2500 200 = hours.

The second question is so the floor space.

Maximum, Minimum.

High rice. Minimum square meter.

Maximum square meters.

hours) a cuboid carton with a length of meters, a width of meters, and a volume of cubic meters. then the height is:

m) What is the minimum square meter occupied by this carton?

sqm) 3 sqm).

1.B speed = (600 + 40 * 6) 6 = 140 m min.

2.B = (145 + 15 * 3) (3-1) = 95.

A = 95-15 = 80.

Are there any equations available?

1. (600 + 40 * 6) 6 = 140m min2, B = (145 + 15 * 3) (3-1) = 95 A = 95-15 = 80.

Solution: Let the velocity of B be x, then.

6x=600+40*6

x = 140 A: B's velocity is 140 m2

Solution: Let the speed of B be x meters per minute.

6x-40×6=600

x=140A: B's speed is 140 meters per minute.

2.Solution: A basket of apples original.

Edition x B basket apples original Y pcs.

x+15=y

y+145=3x

The solution is set up in the right program.

x=80y=95

Answer: There are 80 apples in Basket A and 95 apples in Basket B.

1. A highway has been repaired for 14 kilometers, and there are 18 kilometers left, what percentage of it has been repaired? What percentage of the total length is unrepaired?

2. A wire, the first interception of 1 5 meters, the second interception of 2 5 meters, there is still 1 5 meters left, how many meters of this wire was there?

3. A walks 213 meters in 3 minutes, B walks 325 meters in 4 minutes, and C walks 505 meters in 5 minutes, how many meters do the three of them walk per minute? Which one goes faster?

4. A rectangular tin bucket is 5 meters long, wide and high, how many liters of water can it hold? How many square meters of tin sheet do you need to make this tin bucket? (Iron sheet thickness is not counted).

5. In order to celebrate Children's Day, all the students of Class 6 (1) are divided into two groups of men and women to make flowers, including 20 male students, with an average of 280 flowers per person, and 10 female students, a total of 3400 flowers.

Solution: 6 50 300 meters.

300 6 5 300 seconds.

5 300 1500 meters.

1500 6 250 seconds.

A: It now takes 250 seconds for Chubby to complete the race.