TOTAL EXPENSES

30 40 50 60 70

miles miles miles miles miles

Uniform variable charges $7.035 $9.38 $11.725 $14.07 $16.415

Fixed charges 12.418 12.418 12.418 12.418 12.418

Total charges (per day) 19.453 21.798 24.143 26.488 28.833

Total cost per mile, loaded

one way only .648 .545 .482 .441 .412

Total cost per 1000 ft. per

mile with 3000 ft. to the

load .216 .181 .160 .147 .137

Motor Truck Logging Methods Engineering Experiment Station Series, Bulletin No. 12 · 第 38 / 52 题