New RBI Grade B 2024 Batch 7 45+ 20 Days Study Plan; Download Now !!!
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Question

What should come in place of the question mark (?) in the following number series?

12, 6, 6, 9, 18, ?

A 47 Correct Answer Incorrect Answer
B 45 Correct Answer Incorrect Answer
C 44 Correct Answer Incorrect Answer
D 40 Correct Answer Incorrect Answer
E None of these Correct Answer Incorrect Answer

Solution

12×0.5 = 6 6 × 1 = 6 6 ×1.5 = 9 9 ×2 = 18 18 ×2.5 = 45

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