A tractor whose weight is 20 tonnes has a drawbar pull of 2500 kg, when operated on a level road having a rolling resistence of 30 kg per tonne. If this tractor is operated on a level road having a rolling resistance of 40 kg per tonne, then the drawbar pull of the tractor will________?
Areduce by 250 kg
Breduce by 200 kg
Cincrease by 250 kg
Dincrease by 200 kg
Correct answer
B. reduce by 200 kg
Explanation
The correct answer is reduce by 200 kg.