Question

The area of a rectangle field is 3584 m² and its length is 64 m. A boy runs around the field at the rate of 6 km/h. How long will he take to go 5 times around it?

Answer 1

From the question we have,

Area of the rectangular field = 3584 m²

Length of the rectangular field = 64 m

Boy runs around the field at the rate = 6 km/h

= ((6 × 1000) / 60) m/min

= 100 m/min

Breadth of the rectangular field = (area /length)

= (3584/ 64)

= 56 m

∴perimeter of the field = 2(l + b) units

= 2 (64 + 56)

= 2 (120)

= 240m

Total distance covered by the boy = 5 × perimeter of the field

= 5 × 240

= 1200m

∴required time to cover the distance of 1200m = (1200/100) = 12min

Hence, boy took 12 min to go 5 times around of rectangular field.