Mensuration Practice Test 5

Question : 40 of 40

Marks: +1, -0

The area of a rectangular field is 460 sq. m. If the length is 15 per cent more than the breadth, what is the breadth of the rectangular field?

Solution:

Let the breadth of a rectangle = x
Length of a rectangle =

x+{15}/{100}x

{115}/{100}

x
Area of the rectangle = l × b
460 =

{115}/{100} x × x

460 ×

{100}/{115}

x^2

400 =

x^2

⇒ x = 20
So, breadth = 20 cm

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