Symbols and Notations - Logical Reasoning Questions and Answers

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a + b means a is neither less than nor equal to b.

a - b means a is neither smaller nor greater than b.

a = b means a is not less than b.

a * b means a is not greater than b.

a / b means a is neither greater than nor equal to b.

Statement: A + B, B * C, C * D

Conclusions: I. A + D

II. A = C

if only conclusion (I) follows

if only conclusion (II) follows

if both conclusions (I) and (II) follows

if neither (I) nor (II) follows

if either conclusion (I) or (II) follows

Answer : Option D

Explanation :

a + b means a > b, a - b means a = b, a = b means a > b, a * b means a < b and a / b means a < b.