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

Asked by chotu7349 | 30th Dec, 2019, 09:43: PM

Expert Answer:

A rectangular field is 72 m by 58 m.
Let x be the length and y be the breadth of rectangular field. 
x = 72 m and y = 58 m
Perimeter of rectangle = 2(x + y) = 2(72 + 58) = 260 m
Distance taken by Amar in taking two rounds =  2 × 260 = 520 m
Speed of Aman = 3 km/hr = 3 × 1000/3000 m/s = 5/6 m/s
Total time taken by Amar to cover the distance= Distance/speed = 520/ (5/6) = 10.4 min

Answered by Sneha shidid | 31st Dec, 2019, 09:15: AM