Question

The area of the square field is 1369 m how much time will rita take to run 7 times around it at the rate of 3km/hr

Answer 1

area of the square field=1369 sq m
side of the field=√1369 m
=37m

perimeter of the square field=4×side
=4×37=148m

distance converted in 7 round=7×148=1036m
=1.036 Km

time taken to complete 7 rounds=D/S
$= \frac{1.036}{3}hr \\ = \frac{1.036}{3} \times 60 \: min \\ = 1.036 \times 20 \: min \\ = 20.72min$

Answer 2

Area of square field is 1369 m^2
so side of square=37m
perimeter of field=148m
distance travel by rita =148×7=1036m
speed=3km/hr=3×5/18m/s=5/6m/s
time=1036×6÷5=1243.2sec=20min43.2sec