Question

A man runs round a circularfield of radius 50m at a speed 12km/hr what time is taken by the man to make twenty rounds of the field​

Answer 1

Answer:

220/7 min

Step-by-step explanation:

speed = 12 km/h = 12×518=103m/s  

distance covered = 20×2×227×50=440007m  

time taken  = distance /speed =  440007×310sec=4400×37×160min=220/7min

Answer 2

speed = 12 km/h = 12×518=103m/s

distance covered = 20×2×227×50=440007m

time taken = distance /speed = 440007×310sec=4400×37×160min=2207min