Question : Directions: What will come in the place of (?) in the following equation, if + and – are interchanged and × and ÷ are interchanged?
300 + 242 × 11 – 15 ÷ 9 = ?
Option 1: 324
Option 2: 143
Option 3: 413
Option 4: 341
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Correct Answer: 413
Solution :
Given:
300 + 242 × 11 – 15 ÷ 9 = ?
After interchanging the signs as per the instructions, the equation becomes –
= 300 – 242 ÷ 11 + 15 × 9
= 300 – 22 + 15 × 9
= 300 – 22 + 135
= 435 – 22
= 413
So, 413 is the answer to the given equation. Hence, the third option is correct.
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