Logical Reasoning:: Number Series

Exercise

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In each series, look for the degree and direction of change between the numbers. In other words, do the numbers increase or decrease, and by how much

Look at this series: 8, 6, 9, 23, 87 , ... What number should come next?

A. 128 B. 226
C. 324 D. 429

Look at this series: 5.2, 4.8, 4.4, 4, ... What number should come next?

A. 3 B. 3.3
C. 3.5 D. 3.6

Look at this series: 2, 6, 18, 54, ... What number should come next?

A. 108 B. 148
C. 162 D. 216

Look at this series: 80, 10, 70, 15, 60, ... What number should come next?

A. 20 B. 25
C. 30 D. 50

Look at this series: 544, 509, 474, 439, ... What number should come next?

A. 404 B. 414
C. 420 D. 445

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