Find the next number in the category. 18, 37, 76, 155, 314,?
633
Check each step: \(18 \times 2 + 1 = 37\), \(37 \times 2 + 2 = 76\), \(76 \times 2 + 3 = 155\), \(155 \times 2 + 4 = 314\).
Each term is twice the previous term plus 1, 2, 3, 4, … in turn.
Next term: \(314 \times 2 + 5 = 628 + 5 = 633\).
Hence, the next number is 633.
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Important Questions from Number Series
What will come in place of question mark (?) in the following number series?
2, 5, 11, 23, 44, 77, ?
What will come in place of question mark (?) in the following number series?
31, 32, 36, ?, 61, 86
What will come in the place of question mark (?) in the following number series?
3, 6, 18, ?, 630, 6930
What should come in place of the question mark ‘?’ in the following number series?
60, 40, 50, ?, 180, 460
A series is given with one term wrong. Select that wrong term from the given alternatives.
J12, M24, P48, S96, U192
