`P$Q` means 'P is not smaller than Q'.
P@Q means 'P is neither smaller than nor equal to Q'.
`P#Q` means 'P is neither greater than nor equal to Q'.
`P deltaQ` means 'P is neither greater than nor smaller than Q'.
`P***Q'` means 'P is not greater than Q'.
Now in each of the following questions assuming the given statements to be true, find which of the four conclusions, I, II, III and IV given below them is/are definitely trueand given your answer accordingly.
Statements: `N deltaB,B$W,W#H,H***M`
Conclusions:
I. M@W
II. H@N
III. `WdeltaN`
IV. `W#N`

Options

A. Only I is true
B. Only III is true
C. Only IV is true
D. Only either II or IV is true

Answer

D

Explanation

`N delta B=rarrN=B`
`B$WimpliesBgeW`
`W#HimpliesWltH`
`H***MimpliesHleM`
Therefore, `N=BgeWlt H leM`
Conclusions
I: M@` WimpliesMgtW:` True
II: M@N `impliesHgtN:` False
III: `WdeltaNimpliesW=N:` either true
IV. `W#NimpliesWltN: `either true
W is either smaller or equal to N. Therefore either III or IV is true.