Exams › IBPS PO › Quantitative Aptitude

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).

1. 12
2. 24
3. 14
4. 4
5. 25

Correct answer: 24

Solution

Series I alternates between multiplying by 2 and dividing by 5: 60 → 120 → 24 → 48 → 9.6 → 19.2. Applying the same pattern to 100 gives W = 200, X = 40, Y = 80, Z = 16, so (Y+X) - (Y+Z) = X - Z = 24.

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