Question

In the following questions, the symbols $\delta ,\%,\ast ,\$$ and copyright are used with the following meaning as illustrated below.
${}^{\prime }P\%Q^{\prime }$ means 'P is not smaller than Q'.
${}^{\prime }P\ast Q^{\prime }$ means 'P is not greater than nor equal to Q'.
${}^{\prime }P\delta Q^{\prime }$ means 'P is neither smaller than nor equal to Q'.
${}^{\prime }P\$Q^{\prime }$ means 'P is neither greater than nor smaller than Q'.
'P copyright Q' means 'P is not greater than Q'.
Now, in each of the following questions assuming the given statements to be true, find out which of the three conclusions I, II given below them is/are definitely true
Statements: Z $\delta$ D, D copyright K, K $\delta$ M
Conclusions:
I. M $\ast$ D
II. Z $\delta$ K

• A. If only Conclusion I is true
• B. If only Conclusion II is true
• C. If either Conclusion I or II is true
  
• D. If neither Conclusion I nor II is true
  
• E. If both Conclusions I and II are true

Answer 1

The correct option is D If neither Conclusion I nor II is true


$P\%Q\Rightarrow P\ge Q$
$P\ast Q\Rightarrow P<Q$
$P\delta Q\Rightarrow P>Q$
P copyright Q $\Rightarrow P\le Q$
Statements: Z $\delta$ D $\Rightarrow$ Z > D, D copyright K $\Rightarrow$ d $\le$ K, K $\delta$ M $\Rightarrow$ K > M
Conclusions
I. M $\ast$ D $\Rightarrow$ M < D (False)
II. Z $\delta$ K $\Rightarrow$ Z > K (False)