Question

In a 1 km race, A beats B by 50 m or 5 secs. How long does A take to complete the race? ​

Answer 1

Answer:

distance travelled by A = 1km = 1000 m

distance travelled by B = 1km - 50m = 950 m

speed of A = 50 m/ 5s

                            50m / 5s

                            5m/s

time = distance / speed

           1000m / 5m/s

          200s

1 minute = 60s

200s = ?

= [200/60] s

= 10 / 3 s