Exams › IBPS PO › Quantitative Aptitude

What will come in place of the question mark (?) in the following equation? 35% of 300 - \(\sqrt{?}\) = 64% of 250 - 30% of 450

1. 2500
2. 3600
3. 4900
4. 6400

Correct answer: 6400

Solution

Compute the right side: 64% of 250 = 160 and 30% of 450 = 135, so the right side is 25. Also, 35% of 300 = 105, so \(105 - \sqrt{?} = 25\), giving \(\sqrt{?} = 80\). Therefore, ? = 6400.

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