If '-' stands for 'division', '+' for 'multiplication', '÷' for 'subtraction' and '×' for 'addition', then which one of the following equations is correct?
A
4×5+9−3÷4=15
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B
4×5×9+3÷4=11
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C
4−5÷×3−4=17
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D
4÷5+9−3+4=18
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Solution
The correct option is B4×5+9−3÷4=15 Applying the new signs in Option A 4+5×9÷3−4=15 4+15−4=15 15=15 This is True