If P stands for $$\div$$, Q standsfor $$\times$$, R stands for $$+$$, then
18 Q 12 P 4 R 5 = ?
According to the problem,
18 Q 12 P 4 R 5 $$=18\times12\div4+5$$
$$=18\times3+5$$
$$=54+5$$
$$=59$$
Hence, the correct answer is Option A
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