Exams › IBPS PO › Quantitative Aptitude

What approximate value should come in place of the question mark (?) in the following equation? 324.95 - \[(11.99)^2 - 74.9\] = (?)^2 - 67.99

1. 22
2. 18
3. 28
4. 38

Correct answer: 18

Solution

Using approximation, 11.99 \approx 12 and 324.95 \approx 325, 74.9 \approx 75. Then the left side becomes 325 - (144 - 75) = 256, so (?)^2 - 67.99 \approx 256, giving (?)^2 \approx 324 and (?) \approx 18.

Related IBPS PO Quantitative Aptitude questions

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