Current location - Training Enrollment Network - Mathematics courses - The answer on page 36 of the fifth grade mathematics (PEP) of Peking University Green Card Primary School is urgently needed.
The answer on page 36 of the fifth grade mathematics (PEP) of Peking University Green Card Primary School is urgently needed.
1. Students go boating. If one boat is reduced, each boat can only take eight people. If you add a boat, each boat can take exactly six people. Do you know how many students go boating?

Solution: There are X ships.

8(x- 1)=6(x+ 1)

2x= 14

x=7

Therefore, the number of students is: 8×(7- 1)=48 (people).

There are 48 students going boating.

There are x people in the car and 9 people in the van, which is three times less than that in the car. The bus actually carries 43 people, 3 more than the 10 times of the car. Find out the equal relationship between quantity and quantity, and then list the corresponding equations and solve them.

Solution: the equal relationship between quantity and quantity

(1) Passenger capacity relationship between car and van: 3x-3=9.

(2) The relationship between bus and car capacity: 10x+3=43.

(1) The original number of passengers in the car is 3x-3=9.

3x= 12

x=4

(2) The number of passengers in the car is 10x+3=43.

10x=40

x=4

I hope I can help you!