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The following equation is incorrect. Which two signs should be interchanged to correct the equation?
7 × 16 + 20 - 20 ÷ 10 = 31
  • a)
    ÷ and -
  • b)
    × and -
  • c)
    + and ÷
  • d)
    - and +
Correct answer is option 'B'. Can you explain this answer?
Verified Answer
The following equation is incorrect. Which two signs should be interch...
Interchanging the following signs:
1) ÷ and - → 7 × 16 + 20 ÷ 20 - 10 = 103 ≠ 31
2) × and - → 7 - 16 + 20 × 20 ÷ 10 = 31
3) + and ÷ → 7 × 16 ÷ 20 - 20 + 10 = - 4.4 ≠ 31
4) - and + → 7 × 16 - 20 + 20 ÷ 10 = 94 ≠ 31
Hence, '× and -' is the correct answer.
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Most Upvoted Answer
The following equation is incorrect. Which two signs should be interch...
According to qestion ,
7 × 16 + 20 – 20 ÷ 10 = 31
this is incorrect equation,
replace the sign of × and – ,in place of each other.
the correct equation is ,
7 – 16 + 20 × 20 ÷ 10 = 31.
so,that the correct option is ( B ).
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Community Answer
The following equation is incorrect. Which two signs should be interch...
The given equation is incomplete. Please provide the full equation so that I can help you identify the two signs that should be interchanged.
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The following equation is incorrect. Which two signs should be interchanged to correct the equation?7 × 16 + 20 - 20 ÷ 10 = 31a)÷ and -b)× and -c)+ and ÷d)- and +Correct answer is option 'B'. Can you explain this answer?
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