What will be the value of the expression if the signs '÷' and '×' are interchanged? 45 ÷ 0.4 - 21 × 3 + 1

Show answer & explanation

Answer: (B) 12

Explanation

After swapping ÷ and ×: 45 × 0.4 − 21 ÷ 3 + 1 = 18 − 7 + 1 = 12.