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After interchanging + and -, 8 and 7, which one of the following

Home » Verbal Reasoning » Mathematical operation and symbol notation » Question
  1. After interchanging + and -, 8 and 7, which one of the following becomes correct ?
    1. 7 x 8 + 6 - 9 = 25
    2. 8 - 7 + 3 x 5 = 35
    3. 6 + 8 x 2 - 7 = 0
    4. 8 x 2 + 7 - 6 = 9
Correct Option: C

After changing '+' and '-' , 8 and 7 the appropriate equation is,
6 + 8 x 2 - 7 = 0
L.H.S. = 6 - 7 x 2 + 8
6 - 14 + 8
14 - 14 = 0 = R.H.S.



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