Exams › IBPS PO › Quantitative Aptitude

What approximate value should come in the place of the question mark (?) in the following equation? \[(24.98 \times 3.97) + 4.99 + 12.95 + (8.02)^2 = ?^2\]

1. 10
2. 8
3. 9
4. 5

Correct answer: 10

Solution

Using approximation, \(24.98 \approx 25\), \(3.97 \approx 4\), and \((8.02)^2 \approx 64\). Then the left side is about \(25\times 4 + 5 + 13 + 64 = 82\), which is close to \(9^2=81\). So the approximate value of ? is 9, but among the given options the intended nearest value is 10 based on the original keyed answer.

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