Question : Directions: In the following question, correct the equation by interchanging two signs. 6 + 8 ÷ 4 – 4 = 8
Option 1: ÷ and =
Option 2: ÷ and +
Option 3: ÷ and –
Option 4: + and –
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Correct Answer: + and –
Solution : Given: 6 + 8 ÷ 4 – 4 = 8
Let's check the options – First option: ÷ and = 6 + 8 = 4 – 4 ÷ 8 LHS→6 + 8 = 14 RHS→4 – 4 ÷ 8 = 4 – 0.5 = 3.5 LHS ≠ RHS Second option: ÷ and + 6 ÷ 8 + 4 – 4 = 8 LHS→6 ÷ 8 + 4 – 4 = 0.75 + 4 – 4 = 0.75 RHS→8 LHS ≠ RHS Third option: ÷ and – 6 + 8 – 4 ÷ 4 = 8 LHS→6 + 8 – 4 ÷ 4 = 6 + 8 – 1 = 14 – 1 = 13 RHS→8 LHS ≠ RHS Fourth option: + and – 6 – 8 ÷ 4 + 4 = 8 LHS→6 – 8 ÷ 4 + 4 = 6 – 2 + 4 = 10 – 2 = 8 RHS→8 LHS = RHS
Only the fourth option satisfies the equation. Hence, the fourth option is correct.
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