Question : Direction: After interchanging + and -, 8 and 7, which one of the following becomes correct?
Option 1: 8 - 7 + 3 x 5 = 35
Option 2: 7 x 8 + 6 - 9 = 25
Option 3: 6 + 8 x 2 - 7 = 0
Option 4: 8 x 2 + 7 - 6 = 9
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Correct Answer: 6 + 8 x 2 - 7 = 0
Solution : We have to interchange + and -, 8 and 7, in all the options.
Option first: 8 - 7 + 3 x 5 = 35
8 + 7 - 3 x 5 = 33. Here, the equation is incorrect.
Option second: 7 x 8 + 6 - 9 = 25
8 x 7 - 6 + 9 = 41. Here, the equation is incorrect.
Option third: 6 + 8 x 2 - 7 = 0
6 - 7 x 2 + 8 = 0. Here, the equation is correct.
Option fourth: 8 x 2 + 7 - 6 = 9
7 x 2 - 8 + 6 = 0. Here, the equation is incorrect.
Hence, third option is correct.
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