If ‘+’ means ‘subtraction’, ‘−’ means ‘multiplication’, ‘÷’ means ‘addition’ and ‘×’ means ‘division’, then what is the value of the following expression?
22−4+72×18÷31
- A124
- B152
- C118
- D115
Solution & Step-by-step Explanation
Let's replace the operators with their actual meanings as defined:
− becomes ×
+ becomes −
× becomes ÷
÷ becomes +
The expression transforms to:
22×4−72÷18+31
Now, apply the BODMAS rule:
Division: 72÷18=4
Multiplication: 22×4=88
Addition and Subtraction:
88−4+31=84+31=115
Thus, the value of the expression is 115.
− becomes ×
+ becomes −
× becomes ÷
÷ becomes +
The expression transforms to:
22×4−72÷18+31
Now, apply the BODMAS rule:
Division: 72÷18=4
Multiplication: 22×4=88
Addition and Subtraction:
88−4+31=84+31=115
Thus, the value of the expression is 115.