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Question

Directions (Q:11-15): In each of the questions given below, two statements are followed by four conclusions numbered I, II, III and IV. You have to take both the statements to be true even if they seem to be at variance with the commonly known facts and then decide which of the given conclusions logically follows from the given statements, disregarding commonly known facts.

Statements:       Some roses are flowers.

                        Some flowers are buds.

                        All buds are leaves.

                        All leaves are plants.

Conclusions:      I. Some plants are flowers.

                        II. Some roses are buds.

                        III. No leaves are roses.

                        IV. No roses are buds.

  • Only I follows
  • Only I and II follow
  • Only I and either II or IV follow
  • Only either II or IV follows
  • None of the Above
Answer- C

Some flowers are buds + All buds are leaves + All leaves are plants = (I + A) + A = I + A = I

Which is equal to some flowers are plants.

Conversion is some plants are flowers hence I follows.

Some roses are flowers + some roses are buds = I + I = I = No conclusion

Hence II and IV do not follow by combination. Nor can III follow. However, II and IV form a complementary I-E pair. Hence either II or IV follows.


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