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.

Statements: P + Q, Q - R, R + S

Conclusions: I. P = S

II. P / R

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 B

Explanation :

a + b means a > b, a - b means a = b, a = b means a â‰¥ b, a * b means a â‰¤ b and a / b means a < b.