JAMIA 2026 — Reasoning PYQ

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Question

JAMIA 2026 — Reasoning PYQ

JAMIA | Reasoning | 2026

Which of the following is the percentage increase in the area of a square if its side is increased by $20%$ ?

Choose the correct answer:

Explanation

Method 1: Using the Successive Percentage Formula

Since the area of a square depends on the product of its two sides ( $Area = side \times side$ ), any percentage change in the sides can be calculated using the successive percentage increase formula:

$Net Percentage Change = x + y + \frac{x \times y}{100}$

Here, both sides are increased by $20%$ , so $x = 20$ and $y = 20$ :

$Percentage Increase = 20 + 20 + \frac{20 \times 20}{100}$

$Percentage Increase = 40 + \frac{400}{100}$

$Percentage Increase = 40 + 4 = 44%$