Question

please 1.bheema has formed a square of 314km. he has taken 20min to walk on the square. if he continues the same speed all-round a circle of 200m radius. how much time he can take

Answer 1

given:
for square ,
distance=314km
time=20mints
.: speed =distance/time =314/20 km/hr

now for a circle
radius =200m
.:distance =2π*200*0.01 kms
given same speed

time=2π*200*0.01/(314/20)=0.04 mints