Amar walks round a 72m x 56m rectangular field at the rate 3 km/hour. How much time will he take two rounds of this field?
Answers & Comments
Lipagamy
Circumference of the rectangular field=2*(72+56)=2*124=248m speed of Amar=3 km/hr= 3*1000/60*60 m/sec circumference= 248 m time for one round= circumference/speed =(248*60*60)/(1000*3) =297.6 sec time for two rounds= 2*297.6 sec=595.2 secs =595.2/60 mins=9.92 mins
Answers & Comments
speed of Amar=3 km/hr= 3*1000/60*60 m/sec
circumference= 248 m
time for one round= circumference/speed
=(248*60*60)/(1000*3)
=297.6 sec
time for two rounds= 2*297.6 sec=595.2 secs
=595.2/60 mins=9.92 mins