Exams › IBPS PO › Quantitative Aptitude

What approximate value should come in the place of the question mark (?) in the following equation? $(345.97 + 129.88 - 45.03) + (34.87 - 6.96 \times 2.99) = ? - \sqrt{1521}$

1. 203
2. 485
3. 602
4. 354

Correct answer: 485

Solution

Evaluate the brackets approximately: $345.97+129.88-45.03 \approx 430.82$ and $34.87-6.96\times 2.99 \approx 34.87-20.82=14.05$. Their sum is about $444.87$. Since $\sqrt{1521}=39$, we get $?=444.87+39\approx 483.87$, which rounds to 485.

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