Suppose that the world record winning time for the half-marathon was 1 hour 10 minutes in 1900. If the world's fastest 60-year-olds ran a half-marathon race today, what would you expect the winning time would be?
A) 2 hours 20 minutes
B) 2 hour 0 minutes
C) 1 hour 50 minutes
D) 1 hour 10 minutes

Question

Quizplus · Accepted Answer

In 1896 the winning time for a marathon was 2 hours 59 minutes; in 2012, the winning time for master athletes running the same distance was 3 hours 10 minutes for those in the 60 to 69 age group. By analogy, one would expect the record winning time for a half-marathon in 1900 to be roughly the same as the winning time for the fastest 60-year-old today.

Suppose That the World Record Winning Time for the Half-Marathon