Number series – multiply by 1.5, 2, 2.5, 3, 3.5, 4, ... (factors rise by 0.5): 16, 24, 48, 120, 360, 1260, ? Continue the half-step growth in multipliers.
Verbal Reasoning
Number Series
Difficulty: Medium
Choose an option
Answer
Correct Answer: 5040
Explanation
Introduction / Context:Here the sequence grows via changing multiplicative factors that increase by 0.5 each time: ×1.5, ×2.0, ×2.5, ×3.0, ×3.5, and so on. Such “laddered multipliers” are a frequent pattern.
Given Data / Assumptions:
- 16 → 24 (×1.5)
- 24 → 48 (×2.0)
- 48 → 120 (×2.5)
- 120 → 360 (×3.0)
- 360 → 1260 (×3.5)
Concept / Approach:The next multiplier is ×4.0. Apply it to 1260.
Step-by-Step Solution:
1260 × 4.0 = 5040.Verification / Alternative check:Sequence of multipliers (1.5, 2.0, 2.5, 3.0, 3.5, 4.0) is perfectly regular.
Why Other Options Are Wrong:
3780, 4725, 5355 do not equal 1260×4 and would break the 0.5 step in multipliers.Common Pitfalls:Mistaking these for factorial products; while 5040 equals 7!, the generative rule here is the multiplier ladder.
Final Answer:5040