A bicycle travels 42 meters for every 20 revolutions of the wheel. How many revolutions would the wheel make in a kilometer?
Mathsposted by Tarefa
use a simple ratio
let the number of revolutions in 1 km be n
n/1000 = 20/42
x = 1000(20/42) = 10000/21 or appr 476.2 revolutionsposted by Reiny