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.