Expert says 25% of of serious bicycle accidents involved head injury and that of all head injuries 80% are fatal. What percentage of serious bicycle accidents involve fatal head injuries?

Expert says 25% of of serious bicycle accidents involved head injury and that of all head injuries 80% are fatal. What percentage of serious bicycle accidents involve fatal head injuries? Correct Answer 20%

let, Total number of accidents is 100 given, 25% of of serious bicycle accidents involved head injury and 80% head injuries are fatal So,percentage of serious bicycle accidents involve fatal head injuries = 80% * 25% *100                                                                       = (80/100) *(25/100)*100 = 20 ans: 20%
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