What will come in the place of ‘?’ in the following equation, if ‘+’ and ‘−’ are interchanged and ‘×’ and ‘÷’ are interchanged?
What will come in the place of ‘?’ in the following equation, if ‘+’ and ‘−’ are interchanged and ‘×’ and ‘÷’ are interchanged?
यदि ‘+’ और ‘−’ को आपस में बदल दिया जाए तथा ‘×’ और ‘÷’ को आपस में बदल दिया जाए, तो निम्नलिखित समीकरण में ‘?’ के स्थान पर क्या आएगा?
25 ÷ 2 + 12 × 4 − 7 = ? + 13
Detailed Solution & Logic
Correct Answer:
67
Given:
“+” और “−” को आपस में बदलना है
“×” और “÷” को आपस में बदलना है
Equation:
25 ÷ 2 + 12 × 4 − 7 = ? + 13
Step 1: Operators बदलें
- ÷ → ×
-
- → −
- × → ÷
- − → +
So equation बन जाएगी:
👉 25 × 2 − 12 ÷ 4 + 7 = ? − 13
Step 2: Solve LHS (BODMAS)
- 25 × 2 = 50
- 12 ÷ 4 = 3
अब:
50 − 3 + 7 = 54
Step 3: Equation बनेगी
54 = ? − 13
👉 ? = 54 + 13
👉 ? = 67
Final Answer:
👉 67
✔️ Correct option = 67
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