Which two signs should be interchanged in the following equation to make it correct?
405 + 27 × 40 – 308 ÷ 22 = 314
Show answer & explanation
Correct answer: B
Explanation
The correct answer is option 2 i.e. + and ÷
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Given equation: 405 + 27 × 40 – 308 ÷ 22 = 314 Let us see all the options: |
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1) ÷ and × The equation becomes 405 + 27 ÷ 40 – 308 × 22 = 314 ⇒ -6370.325 = 314 (Not correct) |
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2) + and ÷ The equation becomes 405 ÷ 27 × 40 – 308 + 22 = 314 ⇒ 314 = 314 (Correct) |
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3) × and + The equation becomes 405 × 27 + 40 – 308 ÷ 22 = 314 ⇒ 10961 = 314 (Not correct) |
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4) + and – The equation becomes 405 – 27 × 40 + 308 ÷ 22 = 314 ⇒ -661 = 314 (Not correct) |