Question

Bob and John are 450 feet apart when they start running towards each other. Bob runs at a speed of 11 feet per second, and John runs at a speed of 14 feet per second. How soon will they meet?

Answer 1

18 seconds

Explanation:

450 divided by 11+14=18

Answer 2

18 s

Explanation:

We are given that

Distance between Bob and John=450 feet

Speed of Bob=11ft/s

Speed of John=14 ft/s

We have to find the time after they will meet when they are travel towards to each other.

Total distance traveled by Bob and John in 1 s=11+14=25 ft

25ft covered by Bob and John in 1 s

1 ft covered by Bob and John in
`(1)/(25)s`

450 ft covered by Bob and John in
`(1)/(25)* 450=18 s`

Hence, they will meet after 18 s.