Question

6. A rectangular field is 72 m by 58 m. Amar walks
round it at the rate of 3 km per hour. What time
will he take in taking 2 rounds.​

Answer 1

$\huge \bigstar \fcolorbox{purple}{aqua}{ \tt\pink {AnSwEr}} \bigstar$

Perimeter of Rectangle=2(l+b)

=2×(72+58)

= 2×130m

=260m

He took 2 rounds so,

260m×2

520m

Speed he taken to complete rounds= 3km/ per hour

Formula of time=

$\frac{distance}{speed} \\ \\ = \frac{520}{3} \\ \\ = 173.3$

Thanks..