If '+' means '÷', '-' means '×', '×' means '+', '÷' means '-', then give the value for
45 + 9 - 3 × 15 ÷ 2
Answer & explanation
Correct answer: option 4
Replacing the proper signs in the given expression, we have
45+9-3×15÷2
= 45÷9×3+15-2
= 5×3+15-2
= 15+15-2
= 28