More Questions from Mathematical Operations

Mixed non-strict/strict chain: Given H ≥ I = J > K ≤ L, determine which conclusions definitely follow. Conclusions: I) K < H; II) L ≥ I.

Verbal Reasoning Mathematical Operations Difficulty: Easy
Choose an option
  • A
    If only Conclusions I is true
  • B
    If only Conclusions II is true
  • C
    If both Conclusions I and II are true
  • D
    If neither Conclusions I nor II is true

Answer

Correct Answer: If only Conclusions I is true

Explanation

Introduction / Context:This problem asks what must follow from a chain mixing ≥, =, >, and ≤. We compare K against H and L against I carefully, watching where strictness is preserved or lost.

Given Data / Assumptions:

  • H ≥ I = J
  • J > K
  • K ≤ L
  • Conclusions: I) K < H; II) L ≥ I.

Concept / Approach:From I = J and J > K, we know I > K. Combining H ≥ I with I > K yields H > K ⇒ K < H (I true). For II, K ≤ L and I > K do not force L ≥ I; L might sit between K and I.

Step-by-Step Solution:I) Since I = J and J > K ⇒ I > K. With H ≥ I, we have H > K ⇒ K < H (true).II) From K ≤ L and I > K, L could be ≤ I or < I; nothing mandates L ≥ I. Thus II is not forced.

Verification / Alternative check:Counterexample for II: Let K=2, L=3, I=5, H=6 (and J=5). Then L ≥ I is false (3 ≥ 5 fails), while all premises hold.

Why Other Options Are Wrong:b/d/c each claim a truth value for II that is not compelled; only I is guaranteed.

Common Pitfalls:Assuming K ≤ L and I > K implies L ≥ I—this is not valid without a link between L and I beyond the shared comparison with K.

Final Answer:If only Conclusions I is true

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