Which One of The Following Becomes Correct? If

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

  1. 8 x 2 + 7- 6=9
  2. 7 x 8 + 6 -9 =25
  3. 8 – 7 + 3 x 5=35
  4. 6 + 8 x 2 -7 =0
Nitin Baudh Learner Asked on 22nd August 2015 in Reasoning Questions.
Add Comment
  • 1 Answer(s)

    Answer:  (4) 6 + 8  x 2 -7 = 0

    Explanation:-
    Taking option (1),
    8 x 2 + 7 – 6 = 9
    After interchanging + and -, 8 and 7,
    7 x 2 – 8 + 6
    = 16 – 8  + 6
    = 8 + 6 = 14
    This option is wrong.

    Taking option (2),
    7 x 8 + 6 – 9 = 25
    After interchange + and – , 8 and 7
    8 x 7 – 6 + 9 = 56 – 6 + 9
    = 50 + 9  = 59
    This option is wrong .
    Taking option (3),
    8 – 7 + 3 x 5 = 35
    After interchanging + and -, 8 and 7,
    7 + 8 – 3 x 5
    = 15 – 15 = 0
    This option is wrong.

    Taking option (4),
    6 + 8 x 2 – 7 = 0
    After interchanging + and -, 8 and 7,
    6 – 7 x 2 + 8 = 6 – 14 + 8
    = 14 – 14 = 0
    This option is write.

    Hence, the answer is (4) 6 + 8 x 2 – 7 = 0.

    Anurag Mishra Professor Answered on 22nd August 2015.
    Add Comment
  • Your Answer

    By posting your answer, you agree to the privacy policy and terms of service.