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Some mountains are hillocks. Some mountains are rivers. Some mountains are valleys. Conclusions: 1. All mountains are either hillocks or rivers or valleys 2. No valley is river 3. Some river are valleys

Some mountains are hillocks. Some mountains are rivers. Some mountains are valleys. Conclusions: 1. All mountains are either hillocks or rivers or valleys 2. No valley is river 3. Some river are valleys Correct Answer Only 2 and 3 follow

2 and 3 are the satements involving the extreme terms of the last 2 premises and form a complementary pair. Thus either 2 or 3 follows

Related Questions

Statements : Some mountains are hillocks. Some mountains are rivers. Some mountains are valleys.

Conclusions :
I. All mountains are either hillocks or rivers or valleys.
II. No valley is river.
III. Some river are valleys.
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