By LearningExpress Editors
Updated on Aug 10, 2011
For more practice on number pattern and seqence, refer to:
 Number Series Practice Problems Set 1
 Number Series Practice Problems Set 2
 Number Series Practice Problems Set 3
 Number Series Practice Problems Set 4 You are here
This set contains additional number series questions, some of which are in Roman numerals. These items differ from common number series problems because they ask you to find the number that fits somewhere into the middle of the series. Some of the items involve both numbers and letters; for these questions, look for a number series and a letter series.
 Look at this series: 8, 43, 11, 41, __, 39, 17, … What number should fill in the blank?
 8
 14
 43
 44
 Look at this series: 15, __, 27, 27, 39, 39, … What number should fill the blank?
 51
 39
 23
 15
 Look at this series: 83, 73, 93, 63, __, 93, 43, … What number should fill the blank?
 33
 53
 73
 93
 Look at this series: 4, 7, 25, 10, __, 20, 16, 19, … What number should fill the blank?
 13
 15
 20
 28
 Look at this series: 72, 76, 73, 77, 74, __, 75, … What number should fill the blank?
 70
 71
 75
 78
 Look at this series: 70, 71, 76, __, 81, 86, 70, 91, … What number should fill the blank?
 70
 71
 80
 96
 Look at this series: 664, 332, 340, 170, __, 89, … What number should fill the blank?
 85
 97
 109
 178
 Look at this series: 0.15, 0.3, __, 1.2, 2.4, … What number should fill the blank?
 4.8
 0.006
 0.6
 0.9
 Look at this series: , , 1, __, 9, … What number should fill the blank?
 3
 6
 27
 Look at this series: U32, V29, __, X23, Y20, … What number should fill the blank?
 W26
 W17
 Z17
 Z26
 Look at this series: J14, L16, __, P20, R22, … What number should fill the blank?
 S24
 N18
 M18
 T24
 Look at this series: F2, __, D8, C16, B32, … What number should fill the blank?
 A16
 G4
 E4
 E3
 Look at this series: V, VIII, XI, XIV, __, XX, … What number should fill the blank?
 IX
 XXIII
 XV
 XVII
 Look at this series: XXIV, XX, __, XII, VIII, … What number should fill the blank?
 XXII
 XIII
 XVI
 IV
 Look at this series: VI, 10, V, 11, __, 12, III, … What number should fill the blank?
 II
 IV
 IX
 14

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From 501 Challenging Logic & Reasoning Problems. Copyright © 2006 by LearningExpress, LLC. All Rights Reserved.
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