Question

The lengh of a rectangular play ground is 10 metres more than twice its width. If the perimeter of the play ground is 200 metres, what is its length?

30 metres

50metres

60metres

70 metres

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Answer 1

Answer:

55 meters..your options are wrong

Step-by-step explanation:

let breadth x

length is x + 10

perimeter is 200 meters

A.T.Q

2(x+x+10)=200

2(2x+10)=200

4x+20=200

4x=200-20

4x=180

x=180÷4

x=45

so,length is 55 meters.

Answer 2

Step-by-step explanation:

let width x so length 2x+10

so the perimeter of rectangle is the sum of four sides l+b+l+b=2(l+b)

or,200=2(2x+10 +x)

or,200=2(3x+10)

or,200=6x+20

or,6x=180

or,x=30

so length=2x+10=2×30+10=70