1 The canteen buys 600 kilograms of rice and eats 360 kilograms in 3 days.

Solution: Set enough to eat for x days.

360 divided by 3 600 divided by x

360x=1800

x=55-3=2 (days).

A: The rest is enough to eat for 2 days.

Solution: Let x hours be lost.

1200 divided by x

9000=1200x

x 4/3

Answer: You can lose in 4/3 of an hour.

Solution: Let it be done x.

80 divided by 2 x divided by 8

2x＝640

x 320 A: You can do 320 pcs.

Good luck with your studies!

1. The rest is enough to eat for x days.

600-360=（360/3）x

120x=240

x = 22, x hours can be lost.

2000x=1200×

x = can make x loaves of bread.

2∶80=8∶x

2x=80×8

x=320

1. Set to be able to eat x days 360 3*x=600-360 x=2

2. Set x hours 2000x=1200* x=

3. Set x loaves x 8=80 2 x=320

Solution: Set to be able to eat for x days.

360:3=600：x

360x=3*600

360x=1800

360x/360=1800/360

x=5A: The rest is enough to eat for 5 days.

Solution: Set x hours.

2000x=1200*

2000x=5400

2000x/2000=5400/2000

x = solution: Let x loaves of bread.

80：2=x：8

2x=80*8

2x=640

2x/2=640/2

x=340

Count the rice grains yourself, hurry up!

The rest can be eaten for 24 days. With a proportional solution, the process is as follows.

Solution: Let the rest of the wild crack be eaten for x days.

900-180) spine: x = 180:6

The solution is x=24

A: The rest can be eaten for 24 days.

700-325) digging 5

75 (sentenced to carry Bu Yin rolling kilograms).

A: On average, 75 kg of rice is eaten per day

2500-40-20

2500 a 800

1700 (kg).

A: There are 1,700 kilograms of rice left.

After 20 days of eating, there was still 1,700 kilograms of rice left.

Solution: Let the rest still be eaten for days, which can be obtained from the question.

180:6=(900-180): x

180:6=720:x

x=24A: The rest can be eaten for 24 days.

（900－180）÷（180÷6）

24 (days) is solved with proportions.

Solution: Suppose the rest can still be eaten for x days.

180／6＝（900－180）／x

180x ＝6×720

x ＝6×720÷180

x ＝24

Hello, I ate 180 kg in 6 days, so eat 180 6 = 30 kg per day.

The remaining 900-180 = 720 kg.

The number of days to be able to eat is 720 30 = 24 days.

Eat per day: 180 6 = 30 kg.

Left: 900-180 = 720 kg.

The rest of the days to eat: 720 30 = 24 days.

After eating 180 kg in 6 days, an average of 30 kg per day, the remaining 720 kg is enough to eat for 24 days.

The column formula is: (900-180) (180 6) = 24 days.

If this batch of rice can be eaten for a total of x days, it will be:

x120x=6×500

120x=3000

x=25A: This batch of rice can be eaten for a total of 25 days