Question : Directions: What will come in the place of ? in the following equation, if –
+ is changed with –
– is changed with ÷
÷ is changed with +
× is unchanged
120 – 6 + 31 ÷ 8 × 11 = ?
Option 1: 69
Option 2: 73
Option 3: 77
Option 4: 55
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Correct Answer: 77
Solution :
Given:
+ is changed with –
– is changed with ÷
÷ is changed with +
× is unchanged
120 – 6 + 31 ÷ 8 × 11
As per the given instructions, the new equation would be –
= 120 ÷ 6 – 31 + 8 × 11
= 20 – 31 + 8 × 11
= 20 – 31 + 88
= 77
So, the correct answer after solving the equation is 77. Hence, the third option is correct.
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