Logical Deduction
- When Red Riding Hood comes, the Big Bad Wolf s not far behind.
(i) Big Bad Wolf is behind.
(ii) Red Riding Hood comes.
(iii) Big Bad Wolf is not far behind.
(iv) Red Riding Hood does not appear.
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The statement is in the form: when A (Red Riding Hood comes) then B (Big Bad Wolf is not far behind).
Correct Option: B
The statement is in the form: when A (Red Riding Hood comes) then B (Big Bad Wolf is not far behind).
- When clouds go high, they rain hail.
(i) Clouds went high.
(ii) it is raining hail.
(iii) Clouds went low.
(iv) it is not raining hail.
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The statement is of the type: when A (clouds go high) then B (they rain hail).
Correct Option: D
The statement is of the type: when A (clouds go high) then B (they rain hail).
- Mango rots when it is ripe.
(i) Mango is ripe.
(ii) Mango is not ripe.
(iii) Mango rots.
(iv) Mango does not rot.
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The statement is of the type : when A (it is ripe) then B (mango rots).
Correct Option: A
The statement is of the type : when A (it is ripe) then B (mango rots).
- Only the hardy can climb Mount Sagarmatha.
(i) Santosh climbed Sagarmatha.
(ii) Santosh did not climb Sagarmatha.
(iii) Santosh is hardy.
(iv) Santosh may be hardy
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The statement does not imply that all hardy can climb Mount Sagarmatha, but whoever does is surely hardy.
Correct Option: B
The statement does not imply that all hardy can climb Mount Sagarmatha, but whoever does is surely hardy.
- Anu drinks tea only when Dolly eats samosa.
(i) Dolly ate samosa.
(ii) Anu drank tea.
(iii) Anu did not drink tea.
(iv) Dolly did not eat samosa.
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The statement is of the type: only when A (Dolly eats samosa) then B (Anu drink tea). But it does not imply that whenever Dolly eats samosa, Anu will drink tea.
Correct Option: B
The statement is of the type: only when A (Dolly eats samosa) then B (Anu drink tea). But it does not imply that whenever Dolly eats samosa, Anu will drink tea.
