Coded Inequalities Level 3 Practice Quiz: Long Chains and Codes
Reading long inequality chains accurately and decoding unfamiliar symbol systems is the skill this Level 3 set builds. Aptitude360 frames it around multi-statement direct inequalities, worded and Greek-letter codes, and questions that need one relation to be definitely true while another is definitely false or only non-strict.
What the Level 3 inequality questions test
- Long direct chains with several statements joined through a common element
- Symbol codes built on characters such as hash, dollar, copyright and section signs, and shapes
- Greek-letter codes and worded codes such as 'neither smaller than nor equal to'
- Expressions where two relations must both be definitely true
- Completions that make one relation true and another definitely false
- Choosing a sign that gives greater than or equal to but not strictly greater than
Inequality rules to apply on long chains
- Any strict sign on a same-direction path makes it strict: \( A\ge B>C\ge D \Rightarrow A>D \)
- All non-strict signs keep it non-strict: \( A\ge B=C\ge D \Rightarrow A\ge D \)
- A reversed sign breaks the link: \( A\ge B\le C \) gives no relation of A with C
- Definitely false: \( A>B \) is false when \( A\le B \) is certain
Preparation tips for advanced inequality sets
- Trace the path between the two elements of each conclusion before judging it
- For 'definitely false' conditions, look for the opposite relation being certain, not merely the stated one failing
- When a sign must give non-strict but not strict, check that no strict sign remains on the path
Who this set is for
Learners already comfortable with basic and medium inequality questions who want harder, multi-condition practice for reasoning sections.