Question 3: How to do it? 20,How to do the third question?

For example, if there are four people in size 29, then buy 4 pairs of shoes in size 29, and so on.

Buy sneakers based on the above stats, i.e. 4 pairs for size 29, 11 pairs for size 30, 16 pairs for size 31, and 3 pairs for size 32. Because gymnastics competitions are generally attended by all members, everyone's shoe size is different, so you have to buy according to the statistics. Happy learning!

This kind of question is a test of your common sense.

and habits of living at home.

Some people directly assign "tasks" to parents to buy shoes.

Yes, you may use your pocket money to buy shoes yourself.

Then the two cases are judged differently.

A: I would buy 29 yards 4 pairs, 30 yards 11 pairs, 31 yard 16 pairs, 32 yards 3 pairs. Because shoes should be bought according to everyone's shoe size.

Measure your forearms with your shoes, which are the same length as your feet.

Buy 4 pairs of 29 yards, 11 pairs of 30 yards, 16 pairs of 31 yards, 3 pairs of 32 yards.

Buy a few pairs of shoes for as many sizes as possible, because then each student can wear their own suitable shoes.

Give the merchant ** and let the merchant send it over according to the number of shoe sizes.

According to the icon, find a merchant to buy.

According to the icon, find a merchant to buy, ask more questions, and beware of being deceived.

Buy the most expensive one, because the expensive ***.

Solution: Let the big and key fiber check still have x, the small monk has y, from the meaning of the question, x+y=100 3x+y 3=100

9x+y=300 ③

Get: 8x=300-100

8x=200

x=25, then y=75.

Answer: There are 25 manuscript tomatoes for the big monks and 75 for the small monks.

Question 3: 100 (1+3)=25 groups, 25x3=75 people for small monks. A: ...Packing this shed: 1 adult and 3 small people in a group).

Question 4: Spiders (118-18x6) (8-6) = 5, Dragonflies (20-13x1) (2-1) = 7. A: ...

Duplex chickens and rabbits in the same cage, 13 is the number of dragonflies and cicadas) forest hall.

Solution: Let there be x spiders, y dragonflies, and z cicadas.

x+y+z=18

8x+6y+6z=118

2y+z=20

The solution is x=5, y=7, z=6

Answer: There are 5 spiders, 7 dragonflies, and 6 cicadas.

1: Let your hearts be like little wooden houses, open their long-closed windows, and let me fill the space of your hearts with bouquets, fragrances, light, warmth and dew.

2: The desert is lonely, and the sun sets over the long river.

3: The sun rises in the east and rains in the west, and the Tao is ruthless but affectionate.

Let the two numbers be.

x＋y＝131

1/10x＋y＝77

Then you can solve it.