Two statements are followed by three conclusions numbered I, II and III. Assuming the statements to be true, even if they do not conform to real-world knowledge, decide which of the conclusion(s) logically follows from the statements.
Statements:
All ponds are pools.
Some wells are ponds.
Conclusions:
I. Some ponds are not wells.
II. Some wells are pools.
III. All pools are wells.
Show answer & explanation
Correct answer: B
Explanation
The correct answer is Option 2, i.e. Only conclusion II follows.
| Understanding |
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The least possible venn diagram is:
Conclusions: I. Some ponds are not wells → False (This is not possible, as Some wells are ponds is given). II. Some wells are pools → True (As, All ponds are part of pools, and some ponds are wells, so the part of wells which is ponds is also pools). III. All pools are wells → False (This is possible but not definite). Hence, Only conclusion II follows. |
