The admission fee of the park is 30 yuan per student. There are two kinds of preferential schemes. Scheme A: leading teachers are free When m is the same, the two schemes charge the same

The admission fee of the park is 30 yuan per student. There are two kinds of preferential schemes. Scheme A: leading teachers are free When m is the same, the two schemes charge the same

(1) A: 30m * 80% = 24m
B: (5 + m) * 30 * 75% = 112.5 + 22.5m
That is 24m = 112.5 + 22.5m
m=75

Four teachers lead 72 students on an autumn outing. Each student has a bottle of drink. It costs 25 yuan for 18 bottles and 28 yuan for 20 bottles?

Two 18 bottles and two 20 bottles
25×2+28×2=106

Four teachers lead 72 students to have an autumn outing. Each student has a bottle of drink, 18 yuan for 18 bottles and 30 yuan for 20 bottles. How to buy it cost? How much does it cost?

Buy 5 pieces of 18 bottles, a total of 18 × 5 = 90 yuan

Each of the five lovers brought the same amount of bread. After each of them ate six, the total number of bread left was exactly the same as that of the original three. How many bread did each of them bring
Five lovers, each with the same amount of bread, each ate six, they left the total number of bread is exactly the original three people with the total number of bread. The original each with a few bread

Let's suppose that there are all x
So here's the equation
5X-30=3X
2X=30
X=15

What do you need to prepare for camping?

There is an ancient Chinese calculation: 100 monks eat 100 steamed buns, one big monk eats four, and four little monks eat one. How many big and little monks are there?

Suppose all of them are big monks, they need steamed bread: 100 × 4 = 400 (pieces) little monks: (400-100) / (4-14) = 300 / 154 = 80 (people) big monks: 100-80 = 20 (people) answer: there are 20 big monks and 80 little monks

Some students take biscuits, bread and cake for spring outing. At least six of them take the same things
How many pupils are there at most and at least?

At least 6 people 1 * 6 = 6
Up to 31 people 7 * 5 + 1 = 31
Biscuit bread cake biscuit and bread biscuit and cake biscuit bread and biscuit biscuit bread and cake a total of 7 cases

One hundred people eat one hundred loaves. Four adults and four children each eat one loaf. How many adults and children each?

Adults = 16 children = 4 loaves
The number of adults should be one fourth of that of children
There are 100 adults and 100 children
Then there should be 20 adults and 80 children

The students went for a picnic and bought 20 ham sausages and 15 bottles of mineral water. Each ham sausages costs 1.2 yuan. How much is mineral water per bottle? Fill in the blanks first and solve the equation

The students went for a picnic and bought 20 sausages and 15 bottles of mineral water (54 yuan in total). Each sausages costs 1.2 yuan. How much is the mineral water bottle?
(54-20x1.2)/15=2

A picnics or a picnics?

A picnics