By interchanging which two signs the equation will be correct?
9 × 11 ÷ 31 + 62 - 13 = 18
Show answer & explanation
Correct answer: D
Explanation
The correct answer is option 4 i.e. + and ×
| Understanding |
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9 × 11 ÷ 31 + 62 − 13 = 18 to be true. We need to check with all the options Option 1: Interchanging × and ÷ 9 ÷ 11 × 31 + 62 – 13 ≠ 18 Option 2: Interchanging − and × 9 – 11 ÷ 31 + 62 × 13 ≠ 18 Option 3: Interchanging ÷ and + 9 × 11 + 31 ÷ 62 – 13 ≠ 18 Option 4: Interchanging + and × 9 + 11 ÷ 31 × 62 – 13 = 9 + 22 – 13 = 18 Hence, + and × must be interchanged. |