help with logic problem?

[Nikhildev18]

what does the following statement infer:

If x is selected y cant be selected but z must be selected.

also are the following statements legitimate with reference to the above statement

1) if y is not selected then z must be selected
2) if z is not selected then y must be selected
3) if x is selected then z is also selected

[Nikhildev18]

Five people A,B,C,D,E are if different heights .B is taller than D,who is taller than C but shorter than E,who is taller than A but shorter than B...............

Does the phrase "who is taller than A but shorter than B" refer to D or E?

[vicky.verma]

Originally Posted by Nikhildev18

Five people A,B,C,D,E are if different heights .B is taller than D,who is taller than C but shorter than E,who is taller than A but shorter than B...............

Does the phrase "who is taller than A but shorter than B" refer to D or E?

B > E > D > C
E > A

Ans. E

D can also be a possibility depends upon the options. But E is straight forward.

[vicky.verma]

Originally Posted by Nikhildev18

what does the following statement infer:

If x is selected y cant be selected but z must be selected.

also are the following statements legitimate with reference to the above statement

1) if y is not selected then z must be selected
2) if z is not selected then y must be selected
3) if x is selected then z is also selected

If you have to select one among x,y,z. Then all the 3 statements mentioned here are true.

If x is selected y cant be selected but z must be selected.

Above statement means :

if x is selected then y is not selected.
if x is selected then z is also selected.

[implex]

only the third statement is true

the other two do not have a direct relation

[sarvshwet]

Originally Posted by Nikhildev18

Five people A,B,C,D,E are if different heights .B is taller than D,who is taller than C but shorter than E,who is taller than A but shorter than B...............

Does the phrase "who is taller than A but shorter than B" refer to D or E?

reffers to E

dont worry....
you will see thru these easily with practice!!!!!!!!!

[dashing]

Originally Posted by Nikhildev18

what does the following statement infer:

If x is selected y cant be selected but z must be selected.

also are the following statements legitimate with reference to the above statement

1) if y is not selected then z must be selected
2) if z is not selected then y must be selected
3) if x is selected then z is also selected

If X is to be selected
then statement (3) is correct