75 m e t ers in 30 seco n d x m e t ers in 1 seco n d P ro p or t i o n : 75 − 30 x − 1 cross m u lt i pl i c a t i o n 75 = 30 x ∣ d i v i d e b y 30 x = 2 , 5 m e t ers I n 1 seco n d h e w i ll r u n 2 , 5 m e t ers .
Earl runs at a speed of 2.5 meters per second, calculated by dividing the distance he runs (75 meters) by the time it takes (30 seconds).
;