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If the length and width of a rectangular grand are each increased by 20% then what would be the percent increase in the area of the garden?

Correct answer: D. 44%

  • A. 20%
  • B. 24%
  • C. 36%
  • D. 44%

Explanation

If both dimensions are increased by 20%, each becomes 1.20 times its original value. Therefore, the new area is 1.20 x 1.20 = 1.44 times the original area, giving a 44% increase. Students often choose option b by applying the 20% increase to area only once.

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About Percentages

Percentages express a quantity as parts per hundred and support calculations involving increases, decreases, discounts, commissions, taxes, and successive changes. Questions require distinguishing percentage change from percentage points and identifying the original value when a final value and its percentage change are given.

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