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Read the given statements and conclusions carefully. Assuming that the information given in the statements is true, even if it appears to be at variance with commonly known facts, decide which of the given conclusions logically follow(s) from the statements.
 Statements:
 All crabs are ties.
 Some ties are hooves.
 Some hooves are vents.
 Conclusions:
 (I): Some vents are crabs.
 (II): Some hooves are crabs.

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RRB NTPC Graduate Level CBT-I Official Paper (Held On: 06 Jun, 2025 Shift 2)
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  1. Neither conclusion (I) nor (II) follows.
  2. Both conclusions (I) and (II) follow.
  3. Only conclusion (II) follows.
  4. Only conclusion (I) follows.

Answer (Detailed Solution Below)

Option 1 : Neither conclusion (I) nor (II) follows.
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Detailed Solution

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Statements:

All crabs are ties.

Some ties are hooves.

Some hooves are vents.

We can represent the statements using Venn diagrams:

qImage686cce19a474d6757b7d8819

Let's evaluate the conclusions:

(I): Some vents are crabs.→ False (There is no direct or indirect definite relationship established between "vents" and "crabs" from the given statements. Therefore, this conclusion does not follow.)

(II): Some hooves are crabs. → False (There is no direct or indirect definite relationship established between "hooves " and "crabs" from the given statements. Therefore, this conclusion does not follow.)

Neither conclusion (I) nor (II) logically follows from the given statements.

Hence, the correct answer is "Option 1".

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