Exams › IBPS PO › Quantitative Aptitude

What approximate value should come in place of question mark (?) in the following question? (You do not have to calculate the exact value.) 12.5 + 12.5² + 12.5³ = ?

1. 1953
2. 2212
3. 2221
4. 2122

Correct answer: 2122

Solution

12.5 = 12.5. 12.5² = 156.25. 12.5³ = 12.5 × 156.25 = 1953.125. Total = 12.5 + 156.25 + 1953.125 = 2121.875 ≈ 2122.

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