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question:
if the width of a rectangle is increased by 25% while the length remains constant,the resulting area is what percent of the original area?
answer:
25%

Hi

Its very easy. So lets proceed step by step

Let the Length be L and width be W

Present Area = L x W

when the width is increased by 25%, its new width becomes = 1.25 W

Since the length is same = L

New area = L x 1.25 W
= 1.25 L x W

Increased in Area = 1.25 L x W/ L x W
= 1.25
= 125 %

Increased in area= 125- 100 = 25%

All the best

Q : If the width of a rectangle is increased by 25% while the length remains constant,the resulting area is what percent of the original area?


Let length and width of rectangle as L and W respectively.

Area of Rectangle before increasing width : L x W

After increasing width 25% it becomes 1.25 W.

Area after increasing Width by 25% : L x 1.25 W = 1.25 L x W

Hence area is increased by 0.25 that is 25 percent of earlier area.

Answer : 25%