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What is next? 5,11,24,51,106, .....

A115

B221

C217

D122

Answer:

C. 217

Read Explanation:

5x2+1 →11 11x2+2 → 24 24x2+3 → 51 51 x 2+4 →106 Next term is 106 x 2+5 = 217


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