Select the option that completes the series by filling in the blank. 90, 96, 105, 117, 132, _____
150
150 is correct.
Find the difference between each pair of consecutive terms: \(96-90=6\), \(105-96=9\), \(117-105=12\), \(132-117=15\).
The differences 6, 9, 12, 15 are consecutive multiples of 3, rising by 3 each time. So the next difference must be \(15+3=18\).
Missing term = \(132+18=150\).
The other values would need differences of 16 (148), 10 (142) or 20 (152), none of which continues the +3 growth of the differences.
Similar Questions
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Select the option that correctly completes the series: 1330, 728, 342, 124, ____
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88, 98, 83, 103, 78, ?
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12, 12, 13, 26, 28, 84, ?
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15, 45, 70, 90, 105, ?
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37, 50, 65, 82, 101, ?
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2, 4, 8, 14, 22, ____
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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
