Number and Letter Series
Finding the rule that continues a sequence.
Work through the chapters in order, or continue with the one you need today.
Finding the rule that continues a sequence.
Letter shifts, substitutions and word codes.
Family trees from statements and codes.
Turns, distances and final positions.
Valid conclusions from 'all', 'some' and 'no' statements.
Linear and circular arrangements from clues.
Relationships between pairs and the item that does not fit.
Angles between hands and days of the week.