Which two signs or numbers should be interchanged to make the given equation correct?
(56 ÷ 7) + 5 × 8 – 12 = 60
Show answer & explanation
Correct answer: A
Explanation
The correct answer is option 1 i.e 8 and 12.
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Given equation: (56 ÷ 7) + 5 × 8 – 12 = 60 Let us check all the options: 1) 8 and 12 The expression becomes: = (56 ÷ 7) + 5 × 12 – 8 = 8 + 5 × 12 – 8 = 8 + 60 – 8 = 68 – 8 = 60 Hence, option 1 is the correct answer. |
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2) + and ÷ The expression becomes: = (56 + 7) ÷ 5 × 8 – 12 = 63 ÷ 5 × 8 – 12 = 12.6 × 8 – 12 = 100.8 – 12 =88.88 Hence, option 2 is not the correct answer. |
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3) 7 and 5 The expression becomes: = (56 ÷ 5) + 7 × 8 – 12 = 11.2 + 7 × 8 – 12 = 11.2 + 56 – 12 = 67.2 – 12 = 55.2 Hence, option 3 is not the correct answer. |
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4) × and + The expression becomes: = (56 ÷ 7) × 5 + 8 – 12 = 8 × 5 + 8 – 12 = 40 + 8 – 12 = 48 – 12 = 36 Hence, option 4 is not the correct answer. |