P @ Q means P is greater than Q.
P `underline"@"` Q means P is either greater than or equal to Q.
P = Q means P is equal to Q.
P © Q means P is smaller than Q.
P `underline"©"` Q means P is either smaller than or equal to Q.
Statements: `X "@" Y, Z underline"©" R, Y = Z`
Conclusions: I. X @ R II. Y = R

Options

A. If only I is true
B. if only conclusion II is true
C. if either conclusion I or II is true
D. if either I nor II is true

Answer

D

Explanation

Statements: `X gt Y, Z le R, Y = Z`
Conclusions: I. `X gt R` II. Y = R
Combining `X gt Y` and Y = Z, we get `X gt Z`. Combining this to `Z le R`, is not possible as the tip is pointed toward Z in both cases: so no conclusion about X and R. II is of course wrong as R is not equal to any other term in the given statements (Tip 7).