Question
If 'P' stands for '+', 'Q' stands for '×', 'R' stands
for '-', and 'S' stands for '÷', then what is the value of the following expression? 64 S 8 P 7 R 10 P (8 Q 6 R 4) P 9Solution
64 ÷ 8 + 7 - 10 + (8 × 6 - 4) + 9 8 + 7 - 10 + (48 - 4) + 9 8 + 7 - 10 + 44 + 9 = 58.
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