Which two signs should be interchanged to make the given equation correct?
121 + 11 – 42 × 6 ÷ 7 = 83
Show answer & explanation
Correct answer: B
Explanation
The correct answer is option 2 i.e ÷ and ×.
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Given equation: 121 + 11 – 42 × 6 ÷ 7 = 83 Check all the options: Option 1: + and ÷ After replacement the equation becomes; = 121 ÷ 11 – 42 × 6 + 7 = -234 is not equal to 83. Hence, option 1 is not the correct answer. |
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Option 2: ÷ and × After replacement the equation becomes; = 121 + 11 – 42 ÷ 6 × 7 = 83 is equal to 83. Hence, option 2 is the correct answer. |
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Option 3: - and × After replacement the equation becomes; = 121 + 11 × 42 - 6 ÷ 7 = 582.14 is not equal to 83. Hence, option 3 is not the correct answer. |
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Option 4: + and - After replacement the equation becomes; = 121 - 11 + 42 × 6 ÷ 7 = 146 is not equal to 83. Hence, option 4 is not the correct answer. |