Question

a rectangular field measures 72 by 58 Amar walks around it at the rate 3 kilometre per hour what time will it take in taking two rounds​

Answer 1

$\huge\underline\mathfrak{SOLUTION:'♡}$

Dimensions of a rectangular field= 72cm y 58cm

perimeter of the rectangular field= 2( l+b )

=2×( 72+58)

= 2×130

= 260cm

∴ Distance taken by Amar in taking two rounds= 2×260m

= 520m

Speed of Amar= 3km/hr

=3×1000/3000 m/sec

= 5/6 m/sec

$Total \: time \: taken \: by \: Amar \: to \: cover \: the \: distance \: \ = \frac{distance}{speed}$

= 520/5/6 = 520×5/6

= 104×6

= 104×6/60 min.

= 10.4 min.