5x+40×(2-x)=38

Solution: x = 1.2

Travel time: 2- 1.2 = 0.8 hours.

7. Solution: Suppose that the original plan A produced X parts in June+February, 5438, including:

( 1+ 15%)x+( 1+25%)(500-x)= 595

Solution: x = 300

Actual parts produced by Party A: 300× (1+ 15%) = 345.

B Actual production parts: 595-345 = 250.