The missing number in the given series 3,6,6,12,9,…,12 is
Explanation
1. First Series (Odd Positions) The terms at the 1st, 3rd, 5th, and 7th positions are:
Logic: Each term increases by adding 3 (+3):
2. Second Series (Even Positions) The terms at the 2nd, 4th, and 6th positions (where our missing number is) are:
Logic: Each term increases by adding 6 (+6) or by multiplying by 2 (×2):
Alternatively, if we check the gap:
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Position 2: 6
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Position 4: 12
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Position 6: 18
Conclusion: Following the logic of the second series (+6), the missing number is 18.
Correct Option:(b) 18