The turtle`s speed: v t = 12 miles / hour = /*5,280 = 63,360 ft / hour = / : 3 = 21,120 yards / hour = / : 60 = 352 yards / minute The boy`s speed: v b = 4.4 ft/ s = / * 60/3 = 4.4 * 20 yards / minuet = 88 yards / minute v t : v b = 352 : 88 = 4 The turtle swims 4 times faster than the boy.
