If + means -, - means ×, × means ÷, and ÷ means +, then what will come in place of the question mark (?) in the following equation?

27 ÷ 66 × 11 - 7 + 10 = ?

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RRB Technician Grade III Official Paper (Held On: 28 Dec, 2024 Shift 3)
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  1. 60
  2. 59
  3. 56
  4. 58

Answer (Detailed Solution Below)

Option 2 : 59
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BODMAS

Decoding signs:

Sign + - × ÷
Stands for - × ÷ +

Given: 27 ÷ 66 × 11 - 7 + 10 = ?

After interchanging the letters,

27 ÷ 66 × 11 - 7 + 10 = ? ⇒ 27 + 66 ÷ 11 × 7 - 10 = ?

⇒ 27 + 66 ÷ 11 × 7 - 10 = ?

⇒ 27 + 6 × 7 - 10 = ?

⇒ 27 + 42 - 10 = ?

69 - 10 = ?

⇒ 59 = ?

Hence, "Option 2" is the correct answer.
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