Question

Megha cycle to her school at an average speed of 12 kilometre hours it takes 20 minutes to reach the school if she wants to reach school in 15 minutes what would be speed in metre seconds​

Answer 1

Step-by-step explanation:

Speed=12kmph

Time=20mins=20/60 hrs=1/3 hrs

Distance =Speed ×Time

D=12×1/3=4km

So to cover 4 km in 15 mins(15/60=1/4hrs),

Speed=D/T=4/1/4=4×4=16kmph

16kmph in m/s =16×5/18=4.44m/s

Answer 2

Answer:

12/20=6/10=3/5

3/5×15=9

12+9{21