Question
If 'A' means '×', 'B' means '÷', 'C' means '+', and
'D' means '-', then what will come in the place of '?' in the given expression? 180 A 5 B 10 C 12 D ? = 15 B 3Solution
180 × 5 ÷ 10 + 12 - ? = 15 ÷ 3 90 + 12 - ? = 15 ÷ 3 90 + 12 - ? = 5 102 - ? = 5 ? = 102 – 5  = 97.
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