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 from the statements.
Statements:
1. All flowers are blue.
2. All blue are good.
3. No good is red.
Conclusions:
I. No red is a flower.
II. No red is blue.
III. Some good is flowers.
IV. Some good are blue.
Show answer & explanation
Correct answer: C
Explanation
The correct answer is Option 3 i.e. All conclusions I, II, III, and IV follow
The least possible Venn Diagram for the given statements is drawn below:
Conclusions:
I. No red is a flower → True (As all flowers are good, and no good is red, so no red is a flower)
II. No red is a blue → True (As all blue is good, and no good is red, so, no red is blue.)
III. Some good are flowers → True (As all flowers are blue, and all blue are good, so all flowers are good, so some good are flowers.)
IV. Some good are blue → True (As all flowers are blue, and all blue are good, some good are also blue.)