Question

The length of a rectangular field is twice its breadth. A man jogged around is 6 round and covered a distance of 5 km. What is the length of the field? ​

Answer 1

Answer:

78

Step-by-step explanation:

Answer 2

Answer:

In completing one round of the field distance covered is equal to the perimeter of the field.

∴ Distance covered in 5 rounds = 5 x Perimeter

= 5 x 2 ( l + w )

= 10 x ( l + w)

= 10 x ( 2w + w ) [ length = l = 2w ]

= 10 x 3w

= 30 w

But, the total distance covered is given = 3 km = 3000 m.

∴ 30 x w = 3000

⇒ w = 3000 / 30

⇒ w = 100 m

⇒ Length = 2 w = 2 x 100 = 200 m

$hope \: its \: help \: u$