1, a load of fruit weighs 1.8 tons, which is distributed to three fruit shops (A, B, C) according to the ratio of 2:3:5, and fruit shop B gets this batch of fruit ().

2. The number of A is more than the number of B, and the ratio of A to B is ().

3. The average of A, B and C is 15, the ratio of A, B and C is 2:3:4, and the number of A is ().

The number of sixth graders in Dongfeng Primary School is the number of fifth graders, and the ratio of fifth graders to sixth graders is ().

5. Put 3g salt into 12g water, and the simplest integer ratio of salt to brine is ().

6. Turn (5 square meters): (50 square decimeters) into the simplest integer. The ratio is (), and their ratio is ().

7. The quotient of a divided by b is 1.5, and the simplest integer ratio of a to b is ().

8. For the same workload, Lily needs 12 minutes and Wang Xiang needs 15 minutes. The simplest speed ratio between Li Li and Wang Xiang is ().

9. Turn the ratio of 1 and its reciprocal into the simplest integer. The ratio is () and the ratio is ().

10, 4 minutes: the ratio is (), and the simplest integer ratio is ().

1 1, the simplest integer ratio is (), and the ratio is ().

12, 1:0.75 The simplest integer ratio is (), and the ratio is ().

13,: 0. 125 The simplest integer ratio is (), pronounced (), and the ratio is (), pronounced ().

Second, the application problem:

1, a pesticide water, is prepared from medicine and water according to the ratio of 1: 100. How many kilograms of powder does this pesticide water need for 8080 kilograms?

2. Yongsheng Primary School donated 2,040 yuan on the 4th, 5th and 6th days, of which the donation in the 4th grade is in the 6th grade, which is just equal to the donation in the 5th grade. How much is the donation for the sixth grade?

3. The total weight of students A, B and C is 1 10 kg, and their weight ratio is 6:9:7. How many kilograms is the heaviest student?

4. Group A and Group B will process 1560 parts within 6 hours. Knowing that Team A processes 120 parts per hour, how many parts does Party B process per hour (equation solution).

5. A fish pond raises grass carp, carp and white flour fish according to the ratio of 1:2:3. There are 6,666 known carp, and how many grass carp and white flour fish are raised respectively?