If '+' means '×', '-' means '+', '×' means '÷', and '÷' means '-', find the value of 50 × 5 − 10 + 2 ÷ 8.
Show answer & explanation
Correct answer: B
Explanation
According to the given information, replace the signs with their respective operations:
• '×' means '÷'
• '−' means '+'
• '+' means '×'
• '÷' means '−'
Given expression:
50 × 5 − 10 + 2 ÷ 8
After replacing the signs:
= 50 ÷ 5 + 10 × 2 − 8
Applying the BODMAS rule:
= 10 + 10 × 2 − 8
= 10 + 20 − 8
= 30 − 8
= 22