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Question 41
Select the number that can replace the question mark (?) in the following series.
-1, 5, 23, 59, 119, 209,?
Solution
In the given series, the logic of double difference is applicable.
90+36 = ?-209
126 = ?-209
? = 209+126 = 335
So 335 will come in place of the question mark.
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