Two boys, ‘A’ and ‘B’, ride their bicycles on the same concrete road. ‘A’ has new tires on his bicycle while ‘B’ has old and used tires. ____ is more likely to skid while moving through a patch of road which has lubricating oil spilt over it.

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Two boys, ‘A’ and ‘B’, ride their bicycles on the same concrete road. ‘A’ has new tires on his cycle, while ‘B’ has old and used tires. B is more likely to skid while moving through a patch of road which has lubricating oil spilt over it.
Friction increases wear on the object with a softer composition. You can expect your bicycle tires to wear thin faster with constant friction. While paved roads also wear over time, concrete has a more solid structure than tire rubber. Therefore, old and used bicycles are more likely to skid while moving over a lubricating oil-spattered area of the road—new tires and the road experience less and more friction, respectively, than old and used tires. Therefore, a bicycle with worn-out tires has a higher chance of skidding.

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