1, two cups of boiling water, 200 ml of the first glass of water, and sugar15g; The second glass of water is 300ml, with 20g sugar. Stir well, which glass of water is sweeter? (There must be a formula)

The first glass of water: water: sugar = 15:200=3:40.

The second glass of water: water: sugar =20:300= 1: 15

3/40 > 1/ 15

The first glass of water is sweet.

2. The number of banana baskets brought into the supermarket accounts for 1/6 of the total fruits, the number of orange baskets accounts for 1/4 of the total fruits, and the rest of the time apples. Write down the proportions of three kinds of fruit baskets and simplify them.

Apple:1-1/6-1/4 = 5/12.

Apple: banana: orange = 5/12:1/6:1/4.

=5:4:6

3. The ratio of the number of girls to the number of boys in a school is 7: 8, so what is the number of girls compared with boys? How many points are boys more than girls? What is the ratio of boys in school?

1. It's 7/8.

2. More than 1/7

3.8/ 15

4, B is 8/9 of A, then A: B = (8): (9)

In 5% brine, the mass ratio of salt to water is (1): (19).

Please adopt!