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Multiple Choice Question

The length of a rectangle is increased by 20% and its breadth is decreased by 10%. What is the percentage change in its area?एक आयत की लंबाई में 20% की वृद्धि की जाती है और उसकी चौड़ाई में 10% की कमी की जाती है। इसके क्षेत्रफल में प्रतिशत परिवर्तन क्या है?

  • A
    8% increase
    8% वृद्धि
  • B
    10% increase
    10% वृद्धि
  • C
    8% decrease
    8% कमी
  • D
    No change
    कोई परिवर्तन नहीं
Explanation:
Net % change = x + y + (xy/100) = 20 - 10 - (200/100) = 10 - 2 = 8% (positive means increase).
नेट प्रतिशत परिवर्तन = 20 - 10 - (200/100) = +8% (यानी 8% की वृद्धि)।

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This question belongs to the set "Reasoning & General Studies Practice Test #1 for VDO, Patwari, Lekhpal". Click below to read detailed notes and attempt the full quiz.

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