In the following equation, if '+' is interchanged with '-' and '6' is interchanged with '7', then which of the following equations would be correct?
Show answer & explanation
Correct answer: A
Explanation
The correct answer is Option 1 i.e. 67 - 76 + 43 = 100
| Understanding |
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Let us see all the options: 1) 67 - 76 + 43 = 100 After interchanging the signs and numbers, 76 + 67 - 43 = 100 2) 78 - 68 + 66 = 59 After interchanging the signs and numbers, 68 + 78 - 77 = 69 3) 76 - 75 + 77 = 56 After interchanging the signs and numbers, 67 + 65 - 66 = 66 4) 62 - 67 + 76 = 83 After interchanging the signs and numbers, 72 + 76 - 67 = 81 Hence, 67 - 76 + 43 = 100 is the correct equation. |