P `o+` Q means P is greater than Q.
P `underlinecancel("©")` 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 `underlinecancel("@")` means P is either smaller than or equal to Q.
Statements: W @ N, S = Q ,R `underline("©")` N,S@R
Conclusion: (I)W@R (II)N=Q

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

A

Explanation

Statements: `W lt N, S = Q, R ge N, S lt R`
Conclusions: I. `W lt R` II. N = Q
Combining `W lt N` and `R ge N` we have `W lt N le R` which gives `W lt R.` So, I is true. II must be false as there are no equalities involving N in the given statements (Tip 7: quick method)