Question

If ‘-’ stands for ‘division’, ‘+’ for ‘multiplication’, ‘÷’ for ‘subtraction’ and ‘×’ for ‘addition’, Which one of the following equations is correct?

A 21 – 3 + 10 x 7 ÷ 9 = 68
B 21 + 3 - 10 x 7 x 9 = 68
C 21 – 3 x 10 + 7 + 9 = 68
D 21 x 3 ÷ 10 x 7 ÷ 9 = 68
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