Mensuration Practice Test 7

Question : 27 of 40

Marks: +1, -0

If the length of a rectangular field is increased by 20% and breadth is reduced by 20%, the area of the rectangle will be 192

m^2

. What is the area of the original rectangle?

Solution:

Let length = l
Breadth = b
New length =

{6l}/5

New breadth =

{4b}/5

Area ⇒

{6l}/5 × {4b}/5

= 192
l × b =

192 × 5/6 × 5/4

l × b =

200 cm^2

So, area of the original triangle = 200

cm^2

Go to Question:

Prev Question

Next Question