P© Q' means P' is not smaller than Q'.
`'P%Q'` means 'P is neither smaller than nor equal to Q'.
`'P**Q'` measn 'P is not greter than nor equal to Q'.
`'PdeltaQ'` means P is not greater than Q'.
'P @Q' means 'P is neither greater than nor smaller than Q'.
Now in each of hte following questions assuming the given statements to be true, find which of the four conclusion I, II, II and IV. given below them is/are definitely trueand given your answer accordingly.
Statements:
`F%N, N (c) W, W delta,Y,Y**T`
Conclusions:
`I.F%W`
II. `T%N`
III. `N %Y`
IV. `T%W`

Options

A. Only I and II are true
B. Only I and IV are true
C. Only II are III are true
D. Only I, II and IV are true

Answer

B

Explanation

`F%NimpliesFgtn`
N©W` impliesN gt W`
`W deltaYimpliesW le Y`
`Y**TimpliesY lt T`
Therefore, `F gt N ge W leYlt T`
Conclusions
I. `F%WimpliesF gt W`: True
II. `N%YimpliesT gt N`: Not True
III. `N%YimpliesN gt Y` : Not True
IV. `T%WimpliesTgt W`: True
So, only conclusion I and IV follow