Question

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 to the old time was:

Answer 1

I think the answer is 100 sorry if I get it wrong.

Answer 2

His new time compared to the old time was twice as much.

Explanation:

Consider the provided information.

The distance covered in first trip is 50 miles.

The distance covered in later trip is 300 miles.

The relation between speed, time and distance is:
`Time=(Distance)/(Speed)`

Let speed of the first trip is x.

Thus, the speed of the later trip is 3x.

Now use the above formula by substituting distance 50 and speed as x.

`T_1= (50)/(x)`

Similarly, time taken in second trip is:

`T_2= (300)/(3x)`

Now, Compare new time with old.

`(50)/(x)= (300)/(3x)`

`(50)/(x)= (100)/(x)`

`(50)/(x)= 2*(50)/(x)`

Therefore, his new time compared to the old time was twice as much.