Question

Q.18 How long will a boy take to run around
a rectangular field with length 90m and breadth
45m, if he runs at the rate of 9 km/h?​

Answer 1

Answer:

I hope this will help you....

Answer 2

Step-by-step explanation:

Perimeter of rectangular field = 2 (l+b)

=2 (90+45)

Total distance = 270 m

speed=9kmph=2.5m/s

time taken = 270÷2.5=108s

1min48s