Find the 150th term of $- 5, - 1, 3, 7, \dots$

591

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595

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583

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none of these

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Solution

The correct option is A 591
The series $- 5, - 1, 3, 7 \dots$ are in AP
Common difference is given as $- 1 - (- 5) = 4$
$a_{150} = - 5 + (150 - 1) 4 = - 5 + 149 \times 4 - 5 + 596 = 591$

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