Question

Please, can you answer.

7. No poker players (a) are early risers (b). Some firefighters (c) are early risers. So, some firefighters are not poker players.

8. Some dot-com millionaires (a) are philanthropists (b). All philanthropists are altruists (c). Hence, some altruists are dot-com millionaires.

9. Some telemarketers (a) are Methodists (b). Some Methodists are Democrats (c). So, some democrats are telemarketers.

10. No Fords (a) are Pontiacs (b). All Escorts (c) are Fords. So, some Escorts are not Pontiacs.

11. No mockingbirds (a) are cardinals (b). Some cardinals are songbirds (c). So, some songbirds are not mockingbirds.

12. All ecologists (a) are environmentalists (b). Hence, because all ecologists are wilderness-lovers (c), all wilderness-lovers are environmentalists.

13. No landlubbers (a) are sailors (b). Some sailors are not pirates (c). So, some pirates are not landlubbers.

14. All cats (a) are carnivores (b). All tigers (c) are cats. So, all tigers are carnivores.

15. All sound arguments (a) are valid arguments (b). Therefore, because some sound arguments are mathematical arguments (c), some mathematical arguments are not valid arguments.

16. No fish (a) are reptiles (b). All trout (c) are fish. So, some trout are not reptiles.

17. Some dreamers (a) are not romantics (b), because some idealists (c) are not romantics, and all idealists are dreamers.

18. Some stockbrokers (a) are couch potatoes (b). Hence, because all stockbrokers are e-traders (c), some e-traders are couch potatoes.

19. Some butchers (a) are not bakers (b). No butchers are candlestick makers (c).Therefore, some candlestick makers are not bakers.

20. All meteorologists (a) are forecasters (b). Hence, because some forecasters are psychics (c), some psychics are meteorologists.

Answer 1

Q7 Given No poker players (a) are early risers (b). Some firefighters (c) are early risers.

There are two possibilities that are depicted in the following ven diagram:

Therefore we can conclude that some firefighters are not poker players.

Q8 Given: Some dot-com millionaires (a) are philanthropists (b). All philanthropists are altruists (c)

Therefore some altruists are dot-com millionaires.

Q9.Some telemarketers (a) are Methodists (b). Some Methodists are Democrats (c).

The above can be represented by the venn diagram as follow:

Therefore we can not conclude that some democrats are telemarketers.

Q10.  No Fords (a) are Pontiacs (b). All Escorts (c) are Fords.

From Venn diagram we conclude that all Escorts are not Pontiacs.

Therefore some Escorts are not Pontiacs is invalid.