The application questions for elementary school students include answer 5

1.A rectangle is 70 centimeters long, 50 centimeters wide and 65 centimeters high, if you want to cut into squares of the same size, what can be the maximum edge length of these squares? How many small squares can I cut into in total?

2.The store usually sells a ballpoint pen for 8 yuan, which can earn 60%, and now the price is reduced to yuan to sell, is it a profit or a loss? If so, how much? If so, how much?

3.Container ANow it is an empty cylindrical container, 20 cm in diameter, container B

is a water depth of 40 cm. A cuboid with a length of 27 cm and a width of 18 cm. If you want to pour a part of the water from container B to A so that the height of the water in the two containers is the same, what is the depth of the water at this time?

The cost of the second question pen = 8 [1 + 60%] = 5 yuan.

The current selling price is yuan, which is earned, earned. $5.

Question 3: The base area of the cylinder =

The base area of the box = 27 * 18 = 486

Volume of water = 486 * 40 = 19440

Since the height of the water in the two containers is the same, then the volume ratio of the water is the same as the ratio of their bottom area, then the volume ratio of the volume of the cylinder to the volume of the water in the cuboid = 314:486=157:243, then the volume of the water in the cuboid is 19440*243 [157+243]=, then the height of the water is.

The problem of 3 centimeters can also be done using equations.

The height of the water is h

314h+486h=19440

h = i.e. the height of the water is.

In the first question, the greatest common divisor is 5, then the maximum edge length of the cube is 5, which can be divided into 70*65*50 [5*5*5]=1820.

Assuming that passengers buy short-distance tickets, the total fare is 3 * 50 = 150 yuan, and each additional long-distance ticket is one less short-distance ticket, that is, the long-distance income of a long-distance ticket is 8 + 3 = 11 yuan, and how much money can be added to the long-distance ticket to be 180 yuan more than the short-distance ticket? 150 + 180 = 330 yuan, how much is the long-distance ticket? 330 11 = 30 people, how much is a short trip?

50-30=20 people, A: 30 people who buy long-distance tickets; 20 people will be able to buy a short-distance ticket.

If there are x people who buy long-distance tickets, then 50-x people who buy short-distance tickets will be obtained.

So 8x-3(50-x)=180

Solution x=30

Sophia is 50-x=20

So 30 people who buy long-distance tickets and 20 people who buy short-distance tickets laugh ruler.

Set up long-distance x people and short-distance (50-x) people to disturb.

8x-180=3 (50-x) slow belt pure line defect.

x=3050-30-20 (person).

Answer: 30 people for long-distance tickets and 20 people for short-distance tickets.

30 people who purchased a long-distance ticket'20 people will be able to buy a short-distance ticket.

Set the number of people who take the long trip to X and the number of people who know the short distance of the royal file is Y

8x-3y＝180

x+y＝50

Get x 30y split calendar 20

9 10 = 90.

5 10 80 = 40 yuan.

Answer: 45 yuan to buy 90 pieces, 80 yuan to buy 40 pieces.