Question

A man runs round a circular field of radius of 50m at speed of 12km/hr. How much time is taken by the man to run 20 rounds of the field?

Answer 1

perimeter =2×22×50/7 m
at 20 rounds man completes 2×22×50×20/(7×1000) km=44/7 km
speed=12 km/h
time=44/(7×12)
=11/21 hr




MARK AS brainliest plz