Statement: All cables are chairs. No chair is pen. Conclusions: (1) No cable is pen. (2) All chairs are cables. Which conclusion(s) follow?
ABoth conclusions follow
BOnly conclusion 1 follows
CEither conclusion 1 or 2 follows
DOnly conclusion 2 follows
Answer & Solution
Correct answer: B. Only conclusion 1 follows
1. All cables are chairs, and no chair is pen, so cables (being chairs) cannot be pens; conclusion 1 follows.
2. 'All cables are chairs' does not imply 'all chairs are cables', so conclusion 2 does not follow.
3. Hence only conclusion 1 follows.
_Source: RRB Group D CEN-02/2018 PYQ, Q.84._
Related questions
Statements: Some books are pens. All pens are paper. Conclusions: (i) Some books are paperAll roses are flowers. Some flowers are red. Which conclusion follows?All roses are flowers. Some flowers are red. Conclusion: Some roses are red.All cats are mammals. Some mammals are pets. Conclusion: Some cats are pets.Statements: All cars are Jeeps. All Jeeps are four-wheelers. Conclusions: (1) All four-wheStatements: Some metals are iron. Some iron are heavy. Conclusions: (1) All iron are metalStatements: No cows are cats. All cats have a mustache. Conclusions: (1) Some cows are catStatements: All petals are flowers. Some petals are yellow. All yellows are flowers. Concl