Question

How many minutes Raman will take to cover a distance of 400 metere If he runs at a speed of20km per hr

Answer 1

Step-by-step explanation:

distance=400m

speed=20km/h

=20×1000/60

=(1000/3)m/min

we know,speed=distance/time

1000/3=400/time

time=6/5min=1min 12sec

Answer 2

Answer:

1.2 min

Step-by-step explanation:

• speed = distance / time
• 1 km = 1000 m
• 1 hr = 60 min
• speed = 20 kmph
• distance = 400 m

$speed \: = \frac{distance}{time} \\ time = \frac{distance}{speed} \\ time = \frac{400}{ (\frac{20 \times 1000}{60}) } \\ time = \frac{400 \times 60}{20 \times 1000} \\ time = 1.2 \: min$