Question

If a minute milebut my friend runs 50% fasterhow fast does my friend run?

Answer 1

90 mph

Explanation:

-Let the distance of my friend be X.

-Given that I run a mile in 1 minute, my speed is calculated as:

`Speed=(Distance)/(Time)\\\\=(1\ mile)/(1\ minute)\\\\=1 \m/m=60\ mph`

-Since my friend run's 50% faster, his/her speed would be:

`X=60* 150\%\\\\X=1.5* 60\\\\=90\ mph`

Hence, my friend's speed is 90 mph