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What will come in place of the question mark (?) in the following number series ? 12, 24, 26.5, 79.5, ?, 330

Correct Answer: 82.5

Explanation:

The given series 


 


12   24   26.5   79.5   ?   330 follows a pattern that,


 


12 x 2 = 24


 


24 + 2.5 = 26.5


 


26.5 x 3 = 79.5


 


79.5 + 3 = 82.5


 


82.5 x 4 = 330


 


Hence, the missing number is 82.5


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