Question : Directions: What will come in place of the question mark (?) in the following equation if + and × are interchanged and – and ÷ are interchanged?
9 + 11 ÷ 2 × 36 – 12 = ?
Option 1: 103
Option 2: 98
Option 3: 109
Option 4: 100
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Correct Answer: 100
Solution :
Given:
9 + 11 ÷ 2 × 36 – 12 = ?
After interchanging + with ×, and – with ÷, the equation will be as follows –
= 9 × 11 – 2 + 36 ÷ 12
= 9 × 11 – 2 + 3
= 99 – 2 + 3
= 102 – 2
= 100
Therefore, the required answer is 100. Hence, the fourth option is correct.
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