Question

If the length (L cm) and breadth (B cm) of a rectangle are increased by 25%, find the difference between the areas of the
old and new rectangles,
A. 3LB? sq.cm
B. 24LB'9 sq.cm
C. 9LB/16 sq.cin
D. 16LB/9 sq.cm
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Answer 1

Answer:

Step-by-step explanation:

Given  

If the length (L cm) and breadth (B cm) of a rectangle are increased by 25%, find the difference between the areas of the old and new rectangles,

Let length = L cm and B be B cm

Now old area will be L x B sq cm

New area will be length = 5 L / 4 cm and breadth = 5 B /4 cm

So new area will be 25 LB / 16 sq cm

Therefore difference will be 25 LB /16 – LB = 9 LB / 16 sq cm

Answer 2

Answer:

A rectangle has length L cm and breadth B cm. Then the area of the rectangle is *