Stardust the unicorn, covered a distance of 50 miles on his first trip to the forest. On a later trip he travelled 300 miles while going three times as fast. His new time compared with the old time was:
For this case, the first thing we must take into account is the following definition: d = v * t Where, d: distance v: speed t: time Substituting values we have: Trip 1: 50 = v * t1 We cleared t1: t2 = (50) * (1 / v) Trip 2: 300 = (3 * v) * t2 We cleared t2: t2 = (300/3) * (1 / v) t2 = (100) * (1 / v) Rewriting: t2 = 2 (50) * (1 / v) t2 = 2 * t1 Answer: His new time compared with the old time was: Twice the old time. t2 = 2 * t1.
