Exams › IBPS PO › Quantitative Aptitude

39. ?, 100, 150, 375, 1312.5

1. 50
2. 100
3. 75
4. 25

Correct answer: 50

Solution

The pattern is multiplication by 2, then 1.5, then 2.5, then 3.5. Working backward from 100, the missing term is 50 because 50 × 2 = 100. So the series fits consistently.

Related IBPS PO Quantitative Aptitude questions

• 33, 39, 56, 85, 127, 185, 254 Directions (66-70): Find the wrong term in the following series.
• 3, 6, 15, 45, 157, 630, 2835 Directions: Find the wrong term in the following series.
• Directions (75–77): Study the series and answer the following question. Q75. 1, 3, 9, 31, 129, 651, ?
• Given below is a series in which one number is wrong. Consider this wrong number as the value of A in the second series and find the value of D based on the pattern of the first series. 1, 3, 6, 21, 88, 445, 2676 (A), (B), (C), (D)
• Directions (127-130): Solve the given series and answer the following question. Series: \(a+15,\ a+16.2,\ a+18.6,\ \_,\ \_,\ M\) Note: (i) \(x\) and \(y\) are prime numbers less than 10, with \(y>x\). (ii) \(xy=a\). (iii) \(2a=10y\). Q127. Find which of the following series follows the same pattern as the above series. I. 25.8, 27, 29.4, 33, 37.8, 43.8 II. 112, 113.2, 115.6, 119.2, 124, 130 III. 325, 326.2, 328.6, 332.2, 337, 343
• Directions (103-105): Solve the series to answer the following questions. Series I: 60, 120, 24, 48, 9.6, 19.2 Series II: 100, W, X, Y, Z, 32 Note: Both series follow the same pattern. Find the difference between (Y + X) and (Y + Z).

⚔️ Practice IBPS PO Quantitative Aptitude free + battle 1v1 →