Question

The length of a rectangle file is twice its breath Arun jogged around it 3 times and covered a distance of 5.4 km Find the length and breadth of the find

Answer 1

Answer:

length 600m and breadth 300m

Step-by-step explanation:

let breadth =a

so length = 2a

So perimeter = 2(length+breadth)=6a

joging 3times covers 3x6a =18a distance

by condition

18a=5400 m

or a= 300m

so length 600m

breadth 300m

Answer 2

Answer:

Length is 600 metres or 0.6 km and Breadth is 300 metres or 0.6 km.

Step-by-step explanation:

Let the breadth of the field be B.

According to problem, the length of the field is 2 times its breadth.

So Length(L) = 2B  

Now, as per question

3× perimeter of the field=5.4km

⇒ 3× 2(L+B)=5.4

By substituting the value of L from the above

⇒ 3×2(2B+B)=5.4

⇒ 3×2(3B)=5.4

⇒ 3×6B=5.4

⇒18×B=5.4

⇒B=5.4÷18

⇒B=0.3km or 300 metres.

So, Breadth is 300 metres so L(length) will be

2B i.e. 2×300

⇒600 metres or 0.6 km.