Identify the term that will replace the ?
$12, 32, 72, 152, ?$

312

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325

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515

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613

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Solution

The correct option is B $312$
The series is $+ 20, + 40, + 80, + 160$ .
$x - 152 = + 160$
$x = 312$
So, option A is the correct answer.

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