Question : Directions: What will come in the place of (?) in the following equation, if × and – are interchanged and also + and ÷ are interchanged?
12 + 4 – 2 × 5 ÷ 4 = ?
Option 1: 6
Option 2: 5
Option 3: 3
Option 4: 4
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Correct Answer: 5
Solution :
Given:
12 + 4 – 2 × 5 ÷ 4 = ?
On interchanging the mathematical signs, we get –
12 ÷ 4 × 2 – 5 + 4 = ?
= 3 × 2 – 5 + 4
= 6 – 5 + 4
= 10 – 5
= 5
Hence, the second option is correct.
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