Find the next term of the given series:
$4, 9, 20, 43, . . .$

90

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84

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96

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95

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Solution

The correct option is A $90$
The series follows the method
$4 \times 2 + 1 = 9$ , $9 \times 2 + 2 = 20$ , $20 \times 2 + 3 = 43$ , $43 \times 2 + 4 = 90$

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