Question : Directions: What will come in the place of (?) in the following equation, if + and – are interchanged and × and ÷ are interchanged?
15 ÷ 5 + 12 × 3 – 5 = ?
Option 1: 96
Option 2: 66
Option 3: 76
Option 4: 86
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Correct Answer: 76
Solution :
Given:
15 ÷ 5 + 12 × 3 – 5 = ?
After interchanging + with –, and × with ÷, the equation will be as follows –
= 15 × 5 – 12 ÷ 3 + 5
= 15 × 5 – 4 + 5
= 75 – 4 + 5
= 80 – 4
= 76
So, 76 is the required answer to the given equation. Hence, the third option is correct.
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