Question

Two friends live 7 miles apart. One Saturday, the two friends set out on their bikes at 8 am and started riding towards each other. One rides at 0.2 miles per minute, and the other rides at 0.15 miles per minute. At what time will the two friends meet? Please help my dear genius fellows I'm really dumb.

Answer 1

Explanation:

Alright, lets get started.

Suppose they take t minutes to meet each other.

Distance covered by first friend in t minutes,
`= 0.2 *t`

Distance covered by second friend in t minutes ,
`=0.15 *t`

Total distance is given as 7, so

`0.2 t + 0.15 t = 7`

`0.35 t = 7`

`t = 20`

means after 20minutes they will meet.

So, if they started at 8:00 AM, they will meet at 8:20 AM.

Hence the answer is 8:20 AM : Answer

Hope it will help :)