Question : Directions: What will come in the place of ? in the following equation, if + and – are interchanged and × and ÷ are interchanged?
27 ÷ 3 – 84 + 65 × 5 = ?
Option 1: 152
Option 2: 154
Option 3: 122
Option 4: 124
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Correct Answer: 152
Solution :
Given:
27 ÷ 3 – 84 + 65 × 5 = ?
After interchanging + with –, and × with ÷, the equation will be as follows –
= 27 × 3 + 84 – 65 ÷ 5
= 27 × 3 + 84 – 13
= 81 + 84 – 13
= 165 – 13
= 152
So, 152 is the required answer to the given equation. Hence, the first option is correct.
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