In an imaginary mathematical system, the symbol '–' stands for addition, the symbol '+' stands for division, the symbol '×' stands for subtraction, and the symbol '÷' stands for multiplication. What is the value of the following expression?
144 × 35 + 7 ÷ 12 – 3
Show answer & explanation
Correct answer: C
Explanation
The correct answer is option 3 i.e. 87.
Given equation: 144 × 35 + 7 ÷ 12 – 3
Given conditions:
'–' stands for +;
'+' stands for ÷;
'×' stands for -;
'÷' stands for ×.
After interchanging the expression becomes:
= 144 - 35 ÷ 7 × 12 + 3
= 87
Hence, option 3 is the correct answer.