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(s) from the statements.
Statements:
Some zinc is iron.
Some zinc is silver.
No silver is gold.
Conclusions:
I) Some zinc is not gold.
II) Some zinc is gold.
III) Some silver is iron.
Show answer & explanation
Correct answer: A
Explanation
The correct answer is option 1 i.e. Only conclusion I follow.
The least possible venn diagram is:
Conclusions:
I) Some zinc is not gold. → Follow (As Some zinc is silver and no silver is gold so, definitely some zinc is not gold.)
II) Some zinc is gold. → Does not follow (As Some zinc is silver and no silver is gold so, it is possible but not definite.)
III) Some silver is iron. → Does not follow (As some zinc is iron and some zinc is silver, but this does not means that some silver is iron.)