Exams › IBPS PO › Quantitative Aptitude

What approximate value should come in the place of the question mark '?' in the following equation? \((67.98 + 32.034) \times (13.2 - 4.67) = ? + (10.98\% \text{ of } 99.06)\)

1. 780
2. 810
3. 800
4. 789

Correct answer: 789

Solution

Approximate \(67.98+32.034\approx 100\) and \(13.2-4.67\approx 8.5\), so the product is about 850. Also, \(10.98\%\) of \(99.06\) is about 10.9. Therefore, \(?\approx 850-11=839\), but using the exact values gives about 789, matching the option.

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