If ‘×’ means ‘+’, ‘÷’ means ‘−’, ‘+’ means ‘÷’, and ‘−’ means ‘×’, then what will be the value of the following expression?
231 ÷ 21 × 49 + 7 − 28
Show answer & explanation
Correct answer: C
Explanation
The correct answer is option 3, i.e., 406.
231 ÷ 21 × 49 + 7 − 28
After putting in the value of the codes,
= 231 - 21 + (49 ÷ 7) × 28
= 210 + 7 × 28
= 210 + 196
= 406