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Mathematical Operations
Q1.
If 'S' stands for '-', 'Q' stands for '÷', 'R' stands for '+', and 'P' stands for 'x', what will come in place of the question mark (?) in the following equation?1 P 45 R 2 Q 2 S 4 = ?
Q2.
What will come in place of the question mark (?) in the following equation, if '+' and '-' are interchanged and 'x' and '÷' are interchanged?3 ÷ 12 - 98 x 7 + 35 = ?
Q3.
If '+' means '-', '-' means 'x', 'x' means '÷' and '÷' means '+', then what will come in place of the question mark (?) in the following equation?502 ÷ 78 + 2 - 258 x 2 = ?