The probability of getting a defective tyre `= 200/5000`

`= 0.04`

Therefore the probability of getting a good tyre `= 1-0.04`

`= 0.96`

Therefore the probability of all four tyres can be good

`= 0.96 xx 0.96 xx 0.96 xx 0.96`

`= 0.8493`

**Therefore, there is 0.8493 chance of all four tyres are good.**