If ‘+’ means ‘subtraction’, ‘−’ means ‘multiplication’, ‘÷’ means ‘addition’, and ‘×’ means ‘division’, then what is the value of the following expression?
26 − 13 + 144 × 18 ÷ 81
Show answer & explanation
Correct answer: B
Explanation
The correct answer is option 2 i.e. 411.
Given equation: 26 − 13 + 144 × 18 ÷ 81
After interchanging signs,
= 26 × 13 - (144 ÷ 18) + 81
= 338 - 8 + 81
= 419 - 8
= 411