What will come in the place of ‘?’ in the following equation if ‘+’ and ‘−’…
2026
What will come in the place of ‘?’ in the following equation if ‘+’ and ‘−’ are interchanged and ‘×’ and ‘÷’ are interchanged?
18 × 2 + 7 − 3 ÷ 1 = ?
- A.
12
- B.
8
- C.
5
- D.
3
Attempted by 33 students.
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Correct answer: C
1. Write the original equation: 18 × 2 + 7 - 3 ÷ 1 = ? 2. Interchange the mathematical symbols as instructed (+ becomes -, - becomes +, × becomes ÷, ÷ becomes ×). The new equation is: 18 ÷ 2 - 7 + 3 × 1 = ? 3. Solve the modified equation using the BODMAS rule: (18 ÷ 2) - 7 + (3 × 1) = 9 - 7 + 3 = 2 + 3 = 5. Final Answer: Option C