After interchanging the two signs × and ÷, what will be the value of the following expression?
5 + 7 ÷ 6 × 21 – 3
Answer & explanation
Correct answer: option 4
The correct answer is Option (4) → 4
Write the expression with × and ÷ interchanged, then work it out by BODMAS: multiplication and division from left to right first.
After the interchange: 5 + 7 × 6 ÷ 21 – 3
\(7\times6=42\)
\(42\div21=2\)
\(5+2-3=4\)