1, the Chinese teacher took 42 students to go boating in the park, and * * * rented a boat on 10. Each big boat takes six people and each small boat takes four people. How many boats are there in each group? (Equation solution)

If the ship is X, the ship is10-X.

6x+4( 10-x)=42

x= 1

There are 1 large ship and 9 small boats.

2. Fangfang and Yuanyuan agreed to give 20 points for a correct answer in the math contest. Wrong deduction 12 points. Fangfang and Yuanyuan each got 10, and they got 208 points. Fangfang scored 64 points more than Yuanyuan. Ask him how many questions they answered correctly. (Equation solution)

By two people * * * 208 points, the small square is 64 points more than the small circle, so it can be seen.

Small circle score: (208-64)/2=72

Xiao Fang scored: 72+64= 136.

Set a small circle and answer question X correctly.

20X- 12( 10-x)=72

Get X=6.

Set a small box to answer the Y question correctly.

20Y- 12( 10-y)= 136

Get Y=8.