Concept:The letter codes must be replaced by their given arithmetic operations before simplifying.Explanation:Given: P=×, S=+, and Q=÷.Check option B: 15S16Q2P4=47.Substitute the symbols:15+16÷2×4=47Apply BODMAS, division first:16÷2=8Then multiply:8×4=32Now add:15+32=47So, 47=47, which is true.The other options do not satisfy their given RHS after substitution.Answer:Option B is correct.