Which two signs and two numbers should be interchanged to make the given equation correct?
17 + 11 - 12 × 36 ÷ 6 = 80
Show answer & explanation
Correct answer: A
Explanation
The correct answer is option 1 i.e. × and -; 6 and 12
| Understanding |
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Let's check each option: Option 1: × and - ; 6 and 12 Given : 17 + 11 - 12 × 36 ÷ 6 = 80 After interchanging it becomes; 17 + 11 x 6 - 36 ÷ 12 17 + 11 x 6 - 3 17 + 66 - 3 83 - 3 80 Option 2: × and - ; 17 and 11 Given : 17 + 11 - 12 × 36 ÷ 6 = 80 After interchanging it becomes; 11 + 17 x 12 - 36 ÷ 6 11 + 204 - 6 209 ≠ 80 Option 3: × and - ; 17 and 12 Given : 17 + 11 - 12 × 36 ÷ 6 = 80 After interchanging it becomes; 12 + 11 x 17 - 36 ÷ 6 12 + 127 - 6 133 ≠ 80 Option 4: + and - ; 6 and 12 Given : 17 + 11 - 12 × 36 ÷ 6 = 80 After interchanging it becomes; 17 - 11 + 6 × 36 ÷ 12 17 - 11 + 6 x 3 17 - 11 + 18 24 ≠ 80 Hence, Option 1 is correct. |