147
162
183
192
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Answer : Option A
Explanation :
The terms of the given series are 3 × 12 , 3 × 22 , 3 × 32 , 3 × 42 , 3 × 52 , 3 × 62 ,...............So, missing term = 3 ×72 = 3 × 49 =147
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