Question : Directions: What will come in the place of the question mark (?) in the following equation if + and – are interchanged and × and ÷ are interchanged?
5 ÷ 8 + 4 × 2 – 9
Option 1: 55
Option 2: 43
Option 3: 47
Option 4: 27
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Correct Answer: 47
Solution :
Given:
5 ÷ 8 + 4 × 2 – 9
After interchanging + and –, and × and ÷, the equation becomes –
= 5 × 8 – 4 ÷ 2 + 9
= 5 × 8 – 2 + 9
= 40 – 2 + 9
= 47
So, 47 is the required answer. Hence, the third option is correct.
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