Question

If Mohini runs at a speed of 25 km per hour, how long will she take to run a 800-metre race?​

Answer 1

Answer:

19 min 12 sec

Step-by-step explanation:

Speed of Mohini = 25 km/h

1 km = 1000 m

=> speed = 25000m / hr

$distance = speed \times time$

Distance she needs to cover = 800m

Speed = 25000m / hr

=> 800 = 25000 * t

=> t = 800 / 25000 hrs

=> t = 8 / 250 hr = 8 * 60 / 25 min = 480 / 25 min = 19.2 min

t = 19.2 min or 19 min 12 sec

Answer 2

Answer:

32 minutes

Step-by-step explanation:

We know,

Time = Distance/Speed

So, Time = 800/25

=> 32 minutes