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There is 10% increase in the length of a rectangle and 10% increase in the width of a rectangle. what is the percentage change in the area of the rectangle?

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There is 10% increase in the length of a rectangle and 10% increase in the width of a rectangle. what is the percentage change in the area of the rectangle? Answer: 21%

Question context

This question is part of 📏 Arithmetic Aptitude within the broader 🧠 Aptitude Mastery subject and appears in the Education Testing Council by HEC preparation collection. Reviewing the answer together with nearby questions helps reinforce the underlying concept and identify how it may appear in competitive exams.