`'P $ Q'` meand 'P' is not smaller then Q'.
'P@Q' means 'P is neither smaller than nor equal to Q'.
`'P#Q'` means 'P is netier greater than nor equal to Q'.
`'P delta Q'` measn 'P is neither greater than nor equal to Q'.
`'P**Q'` means 'P is not greater than Q'.
Now in each of hte following questions assuming the given statements to be true, find which of the four conclusions I, II,III and IV given bwlow them is/are definitely trueand give your answer accordingly.
Statements: `D#R,R***K,K`@`F,F$J`
Conclusions: `I.J#R`
`II. J#K`
`III.R#F`
IV.K@D

Options

A. OnlyI, II and III are true
B. Only II,and III and IV are true
C. Only I, III and IV are true
D. None of these

Answer

D

Explanation

`D#RimpliesD ltR`
`R***K impliesR leK`
K@F `impliesK gt F`
`F$JimpliesFgeJ`
Therefore ,` Dlt Rle K gt F ge J`
Conclusions
I. `J#R=J ltR` : Not True
II. `J#KimpliesJlt K` :True
III. `R#FimpliesRlt F` : Not True
IV. K@D`impliesKgtD` : True
So only conclusion II and IV follow