If "−" stands for "division", "+" stands for "multiplication", "÷" stands for "subtraction" and "×" stands for "addition", then which of the following equations holds true?
- A4×5+9−3÷4=15
- B4−5×9+3÷4=32
- C4−5÷18×3−4=70
- D4÷5+9−3÷4=81
Solution & Step-by-step Explanation
Let's convert the operators as specified by the rule:
− → ÷
+ → ×
÷ → −
× → +
Let's test Option A:
4×5+9−3÷4=15
Replacing signs:
4+5×9÷3−4
Applying BODMAS rule:
4+5×3−4
4+15−4=15
Since 15=15, this equation holds true.
− → ÷
+ → ×
÷ → −
× → +
Let's test Option A:
4×5+9−3÷4=15
Replacing signs:
4+5×9÷3−4
Applying BODMAS rule:
4+5×3−4
4+15−4=15
Since 15=15, this equation holds true.