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Quantitative Aptitude

Zonal Theorem

In each of th...

Question

In each of the following questions, two statements are given followed by two/four conclusions I, II III and IV. You have to consider the two statements to be true even if they seem to be at variance from commonly known facts. You have to decide which of the given conclusions if any, follow from the given statements.

Statements
Some buses are four wheelers.
All four-wheelers are vans.

Conclusions
I. Some vans are buses.
II. Some buses are vans.

A

Either conclusion I or II follows

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B

Both conclusions I and II follow

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C

Only conclusion I follows

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D

Only conclusion II follows

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E

None of these

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Solution

The correct option is B Both conclusions I and II follow
Some buses are four -wheelers.
All four-wheelers are vans.
$I + A \Rightarrow I$ -type of conclusion.
Some buses are vans.
This is conclusion II.
Conclusion I is the converse of this conclusion.

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