Question

The length and breadth of a rectangle are 2.5 m an
1 m respectively. If its length increases by 10%, fin
the percentage increase in its area.​

Answer 1

Solution:

Given:

Length, l = 2.5 m

Breadth, b = 1 m


Original Area = l x b = 2.5 x 1 = 2.5 m^2

New Area = 2.5 (10%) x 1 = 2.75 m^2

The difference between the original area = 2.5 m^2 and new area = 2.75 m^2
is

2.75 - 2.5 = 0.25

Increase of the area = 0.25/2.5 x 100 = 10%

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