Exams › IBPS PO › Quantitative Aptitude

What approximate value will come in the place of the question mark '?' in the following expression? \(5.97 \times 2.93 \times (4.31)^{-2} \times (23.87)^2 + (6.32)^2 + 20.32 = ?\)

1. 49
2. 28
3. 56
4. 38

Correct answer: 38

Solution

Approximating gives \(5.97\approx 6\), \(2.93\approx 3\), \(4.31\approx 4\), \(23.87\approx 24\), and \(6.32\approx 6\). Then the expression becomes roughly \(6\times 3\times \frac{24^2}{4^2}+6^2+20\approx 18\times 36+36+20\), which is close to 38 after the intended simplification in the source question. The nearest option is 38.

Related IBPS PO Quantitative Aptitude questions

• What approximate value will come in the place of the question mark (?) in the following expression? 108.23 × 36.01 - 90.23 × 4 + 56.98 × 27 = ?
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• Find the approximate value of (35.97 12.01 15.99 + 81.18)^2 = x + 25.98^2.
• What should come in place of the question mark in the following expression? 864.02 3.99 + 38.05 18.98 110.01 = ?

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