If the length of a rectangle is increased by 20% and the width is decreased by 20%, the area is:

decreased by 20%

decreased by 4%

Stay the same

increases by 10%

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ব্যাখ্যা ও সঠিক সমাধান

উত্তর: decreased by 4%

Let's assume the length of the rectangle is L and the width is W.Then the original area of the rectangle = L x WAfter the increase in length by 20%, the new length = L + 0.2L = 1.2LAfter the decrease in width by 20%, the new width = W - 0.2W = 0.8WSo, the new area of the rectangle = (1.2L) x (0.8W) = 0.96LWTherefore, the new area of the rectangle is 96% of the original area.Answer: 96% of the original area.decreased by 4%

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অনুসন্ধান করুন

বিস্তারিত সমাধান

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অনুসন্ধান করুন

বিস্তারিত সমাধান

If the length of a rectangle is increased by 20% and the width is decreased by 20%, the area is:

সম্পর্কিত বিষয় সমূহ

সম্পর্কিত অন্যান্য প্রশ্ন

If u> t, r> q , s>t, t>r, which of the following must be true?

The price of a certain television set is discounted by 10 percent, and the reduced price is then discounted by 10 percent. The series of successive discount is equivalent to a single discount of -

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Ms. Lyla wants to put up fencing around three sides of her rectangular garden and have a side of 20 meter unfenced. If the yard has an area of 680 square meters, how many yards of fencing does she need?

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If N and P are both odd numbers, which of the following numbers must be an even number?