Question : Directions: In this question, three statements are given, followed by two conclusions numbered I and II. Assuming the statements to be true, even if they seem to be at variance with commonly known facts, decide which of the conclusions logically follows/follow from the statements.
Statements:
I. All teas are coffees.
II. All coffees are beverages.
III. Some teas are drinks
Conclusions:
I. All teas are beverages.
II. No drink is a coffee.
Option 1: Only conclusion I follows
Option 2: Only conclusion II follows
Option 3: Both conclusions I and II follow
Option 4: Neither conclusion I nor II follows
Correct Answer: Only conclusion I follows
Solution : The possible Venn diagram, according to the given statements is as follows –
Let's analyse the conclusions –
Conclusion (I):
All teas are beverages –
From the Venn diagram, it is evident that the circle representing teas is completely inside the circle representing beverages. Thus, it can be concluded that a
ll teas are beverages.
Conclusion (II):
No drink is a coffee – From the Venn diagram, there is no negative relation between drink and coffee. Thus, this conclusion doesn't follow.
So, the only conclusion I follows. Hence, the first option is correct.
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