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Question

In the following questions, the symbols @, #, %, $ and © are used with the following meaning as illustrated below: ‘A @ B’ means ‘A is neither smaller than nor equal to B’. ‘A # B’ means ‘A is neither greater than nor equal to B’. ‘A % B’ means ‘A is not greater than B’. ‘A $ B’ means ‘A is not smaller than B’. ‘A © B’ means ‘A is neither smaller than nor greater than B’.

Statements: R @ D, D $ J, J # M, M @ K

Conclusions:       I. K # J                   II. D @ M            III. R $ J                IV. K @ D

A Only II is true Correct Answer Incorrect Answer
B None is true Correct Answer Incorrect Answer
C Only I is true Correct Answer Incorrect Answer
D Only III and IV is true Correct Answer Incorrect Answer
E None of these Correct Answer Incorrect Answer

Solution

given statements: R @ D, D $ J, J # M, M @ K After converting: R > D, D ≥ J , J < M , M > K After combining: R > D ≥ J < M > K Conclusion a → K # J → K < J (J < M > K ) , No relationship can be established between K and J so, it is not true. Conclusion b → D @ M → D > M ( D ≥ J < M ) No relationship can be established between D and M so, it is not true. Conclusion c → R $ J → R ≥ J ( R > D ≥ J), it is not true Conclusion d → K @ D → K > D ( D ≥ J < M > K), No relationship can be established between K and D so, it is not true.

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