Question
Which of the following numbers will replace the question
mark (?) in the given series? Â 7, 15, 29, 59, ?, 235Solution
The logic followed here is: (7 × 2) + 1 = 14 + 1 = 15 (15 × 2) - 1 = 30 - 1 = 29 (29 × 2) + 1 = 58 + 1 = 59 (59 × 2) - 1 = 118 - 1 = 117 (117 × 2) + 1 = 234 + 1 = 235 The missing number is ‘117’. Hence, the correct answer is (B).
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Which of the following is not correct?
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