Two boys are riding their bicycles on the same concrete road. One has new tyres on his bicycle while the other has tyres that are old and used. Which of them is more likely to skid while moving through a patch of the road which has lubricating oil spilled over it?

The boy having bicycle with old tyres is more likely to skid on the oily road because:

⇒ The old tyres will experience less friction in comparison to that of new tyres.

⇒ To move on the oily road needs larger force of friction.

⇒ But the old tyres have less friction which is not enough to move on the oily road.

⇒ Thus, it is most likely to skip.