• Brainly User
The tyres of a bus or a truck have larger width than those of a car as truck and buses are big and heavy transport. Their great weight need to be be spread over a large area. If the tyres would be small , the weight would puncture the tyres as the tyres would not be able to bear the heavy weight of the truck.. 
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actually it would puncture the tires but the vehicle would sink in the road
Becz they have larger wheels as they carry large tonnes of weight large area reduces pressure on it so it has large re so that it culdnot shrunk on roads 
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