Tom runs a marathon (26.2 miles) in 4 hours and 12 minutes. How many miles per hour does he run?. Without calculating the answer, from the choices given, which is most reasonable?. A. 12 kilometers per hour. B. 6 miles per hour. C. 3 miles per hour. D. 20 miles per hour.

The correct answer to this question is letter "B. 6 miles per hour."

Tom runs a marathon (26.2 miles) in 4 hours and 12 minutes. He runs at a rate of 6 mile/hour

distance = rate * time

26.2 = rate*4 hours and 12 minutes

(convert 4 hours and 12 minutes to hours)

= 4.2 hours

rate = 26.2 / 4.2

rate = 6.23