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:
`D deltaT,T` @`R,R(c)M,M%K`
I. R@D
II. `R%D`
III. `K **T`
IV. `MdeltaT`

Options

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

Answer

D

Explanation

`D deltaTimpliesDle T`
T@R`impliesT=R`
R©M`impliesR ge M`
`M%K impliesM gt K`
Therefore, `Dle T=Rge M gt K`
Conclusions
I. R@`Dimplies R=D:` Not True
II. `R%DimpliesRgt D:` Not True
R is either greater than or equal to D Therefore, either I or II is true.
III. `K**TimpliesKltT:` True
IV. `M delta Timplies M leT:` True