3.④

Practical problems of intransitive verbs

1. solution: 504÷4.5= 1 12 (km)

1 12-64=48 (km/h)

This truck travels 48 kilometers per hour.

2. Solution: 504×(5/9+2/3)=6 16 (Taiwan Province).

Answer: 6 16 washing machines were actually produced.

3. Solution: 3× (1/8+112) = 5/8.

1-5/8=3/8

3/8÷ 1/8=3 (days)

A: The rest will be made by A, and it will take three days.

4. Solution: There are X apricot trees and (x+40) peach trees.

80%(x+40)=x

x= 160

There are 160+40=200 peach trees.

There are 200 peach trees.

5. Solution: 3.6×1.2×1/3 =1.44 (m3).

1.44(2× 1.5)= 0.48 (m)

Answer: The loading height is 0.48 meters.

6. Solution: Suppose there are 6x boys and 5x girls taking part in the competition.

6x×8/9=5x+5

x= 15

∴: Initially, 15×5=75 girls took part in the math contest.

A: 75 people took part in the competition.

Haha, I am a sophomore.