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Which of the following statements is/are correct?

1. If all jasmines are flowers and some flowers are white, then some jasmines may be white.
2. If all rats are mammals and all mammals are animal, then all rats are animals.

Select the answer using the codes given below:

  • A.1 only
  • B.2 only
  • C.Both 1 and 2
  • D.Neither 1 nor 2

Answer: C

Both 1 and 2 are correct.

Statement 1: all jasmines are flowers and some flowers are white. The white flowers may or may not include jasmines, so 'some jasmines may be white' is a possibility that the premises allow. A definite 'some jasmines are white' would not follow, but 'may be' does.

Statement 2 is a valid chain: all rats are mammals and all mammals are animals, so all rats are animals.

So neither statement oversteps its premises, and the answer is both.

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