Question

a farmer moves along the boundary of a square field of side 10 m in 40 seconds what will be the food of displacement of the farmer at the end of 2 minutes 20 seconds from its initial position ​

Answer 1

Total time =2min20sec

=2*60sec + 20sec=40sec

Now,In 40sec he makes =1round

so,In 140sec, he makes=1/40+*140

=3.5rounds