Question

A gold medal swimmer finished a 100 meter race in 53.63 seconds What was the swimmers average speed during the race? Express the answer in miles per hour (mph) use the relationship below to help u decide :

1 hour = 3,600 seconds
1 mile = 1,610 meters
A) 8 mph
B) 6 mph
C) 2 mph
D) 4 mph

Answer 1

To solve this question you need to figure out how many meters he was swimming in 1 second. Divide 100 by 53.63, and you get 1.86. Multiply 1.86 3,600 to get 6,696. Divide 6,696 by 1,610 to get about 4. Your answer is D. Hope this helped!