Question : Directions: What will come in the place of the question mark (?) in the following equation if + and – are interchanged and × and ÷ are interchanged?
49 × 7 ÷ 13 – 87 + 12 = ?
Option 1: 167
Option 2: 166
Option 3: 159
Option 4: 171
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Correct Answer: 166
Solution :
Given:
49 × 7 ÷ 13 – 87 + 12 = ?
On, interchanging the symbols with each other, we get –
= 49 ÷ 7 × 13 + 87 – 12
= 7 × 13 + 87 – 12
= 91 + 87 – 12
= 166
So, 166 is the required answer to the given equation. Hence, the second option is correct.
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