SSC CHSL 2023 · PYQ · Number Series · medium
In the following question, select the missing number from the given series: 36, 18, 54, 27, 81, ?, 121.5
- A.41.5
- B.40.5✓ Correct
- C.40
- D.38
The pattern alternates: ÷2, ×3, ÷2, ×3... 36÷2=18, 18×3=54, 54÷2=27, 27×3=81, 81÷2=40.5, 40.5×3=121.5. So the missing number is 40.5.
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