Area and Perimeter Practice Test 3

Question : 25 of 40

Marks: +1, -0

The length of a rectangle is increased by 30% and breadth is decreased by the same per cent, the effective change in area will be

Solution:

Effective change in area = 30 – 30 –

{30×30}/{100}

= - 9
Hence, area is decreased by 9%.

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