1 Whales weigh about 37 times as much as elephants. As we all know, elephants are lighter than whales 126 tons. How many tons do elephants and whales weigh?

During the summer vacation, two brothers went fishing in the pool. My brother caught 20 more than his younger brother, and his brother caught three times as much as his younger brother. Brother, brother, how many have you caught?

There are 45 more girls than boys, and fewer girls than boys 15. How many boys and girls are there?

The weight of two piles of coal is equal, the first pile is 7 tons, and after the second pile 19 tons, the remaining tonnage of the first pile is 3 times that of the second pile. How many tons are there in each of the two piles of coal now?

In livestock farms, there are as many goats as sheep. If you sell 200 goats and buy 350 sheep, the number of sheep is six times that of goats, and there are 50 sheep. How many goats and sheep are there in the livestock farm?

There are two baskets of oranges. If you take nine oranges from the first basket and put them in the second basket, the number of oranges in the two baskets is equal. If from the second basket,

Take out 12 and put them in the first basket, so the number of oranges in the first basket is equal to twice that in the second basket. How many oranges are there in each basket?

During the holiday, my brother did more 180 math problems than his brother, and his brother did four times as many math problems as his brother did. How many math problems do they each do?

Party A and Party B have the same amount of funds. If Party A gives Party B 30 yuan, Party B's money is five times that of Party A .. How much is A and B?

There are 600 more bags of rice in granary A than in granary B. If 300 bags are transported from granary B to granary A, the rice in granary A is twice as much as that in granary B. How many bags of rice are there in two granaries?

10 Two pieces of cloth with the same length, the first piece sells for 25 meters, the second piece sells for 7 meters, and the rest of the cloth, the second piece is three times as long as the first piece. How many meters are these two pieces of cloth?

1 1 It is known that the quotient of two numbers is 4 and the difference between these two numbers is 39. So, what is the smaller of these two numbers?

Xiaoying has three times as many story books as Xiao Juan. If Xiaoying lends Xiao Juan 10 story books, the number of story books in Xiao Juan is equal to three times that of Xiaoying. Xiaoying, how many story books are there in Xiao Juan?

13 There is a basket of apples and pears in the fruit shop, with the same weight. Apples sell for 60 Jin and pears for 40 Jin. As a result, pears weigh three times as much as apples. How many kilograms are apples and pears?

1 4 Class 4 and1Class have as many original books as Class 4 and Class 2. Later, Class 4. 1 bought 126 new books, and Class 4.2 took out 234 of its original books and lent them to Class 4.3. At this time, the number of books in class 4./kloc-0 is three times that of class 4.2. 4. How many books are there in1class and 4.2 class?

1. There is a 50-meter-long walkway in the school. I plan to plant Metasequoia glyptostroboides along the road, one every five meters. How many trees would you plant if you planted one at both ends? How many trees will * * * plant if you don't plant both ends? How many trees will * * * plant if only one is planted?

2. There are 4 1 trees (including both ends) on one side of a tree-lined road in the school, and the distance between two adjacent trees is 2m. On the other side of the avenue, it is planned to erect a lamp post every 20 meters. * * * How many lamp posts do you need?

The carpenter sawed a piece of wood 3 meters and 20 centimeters long into two pieces of short wood 30 centimeters and 20 centimeters long. He sawed a length of 30 cm first, then a length of 20 cm, and then sawed off a small piece of wood like this. It takes 6 minutes to saw the next section, and then it will take 2 minutes to rest. How many sections can this piece of wood be sawed into? * * * how many minutes

4. The gallery in the new park is 74 meters long, with 20 paintings of the same size hanging on both sides, and the horizontal length of each painting is 15 decimeter. The distance between any two adjacent paintings is equal, and the two paintings at both ends are 3 meters away from both ends of the aisle. What is the distance between two adjacent paintings?

5. As shown in figure 1 1-5, put flowerpots around the square flower bed (double lines in the figure).

How many different arrangements should there be to make four pots of flowers on all sides? How many pots of flowers does each of you need?

6. The circumference of the circular roller skating rink is 200 meters, and a lamp is installed every 10 meters. * * * How many lamps have been installed?

7. Saw three long pieces of wood into four small pieces, and it takes five minutes to saw each small piece. How many minutes will it take to saw it all?

8. Saw off a piece of wood every 6 minutes. It takes 5 minutes for each sawing, and 30 minutes for * * * sawing (there is nothing left). How long is this wood?

9. Recruits of a PLA unit conduct queue training. 204 recruits are arranged in four rows, and the adjacent two rows are 8 meters apart. How long is this column at least?

10. Plant willows around the square pond with 10 trees on each side. How many willows do you need at least?

1 1.57 Military vehicles lined up across a 200-meter-long bridge. Each commander is 5 meters, and the distance between two military vehicles before and after crossing the bridge is 2 meters. How many meters is it from the front of the first car to the rear of the last car?

12. A tunnel is 240 meters long, and lights are installed on both sides of the tunnel every 16 meters. Install the first lamp 8 meters away from the entrance and the last lamp 8 meters away from the exit. How many lamps are installed in this tunnel?

13. Uncle Li walks along the expressway in the morning (assuming the same speed). It took him 24 minutes to walk from the first shot to the 25th shot, and then he walked back immediately. When he walked for 10 minutes, what was the number behind him? How many minutes did Yi * * walk to the fifth root?

14. The building baseline is102m and the width is 42m. At a distance of 4 meters from the building, plant a tree every 5 meters around the building. How many trees have been planted? How many trees are there on the long and short sides?

15. The starting station and the terminal of a bus line leave once every 10 minute, and arrive at the other station after 1 hour. If you take a bus from the starting station to the terminal, how many cars can you see at most from the terminal?

16. Arrange 10 weiqi in five rows, with exactly four weiqi players in each row. How should I put it?