സമവാക്യത്തിന് അനുയോജ്യമായ, വിട്ടുപോയ ഭാഗങ്ങളിൽ  ശരിയായ ചിഹ്നങ്ങൾ +, -, ×, ÷ നൽകുക.

(18 _ 3) _ 7 _ 15 _ 5 = 0

This question was previously asked in
RRB JE Previous Paper 14 (Held On: 26 May 2019 Shift 3)
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  1. +, ÷ , -, ÷ 
  2. +, +, × , ÷ 
  3. +, × , -, ÷ 
  4. +, -, × , -

Answer (Detailed Solution Below)

Option 1 : +, ÷ , -, ÷ 
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Detailed Solution

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1) (18 + 3) ÷ 7 - 15 ÷ 5 = 0

      21 ÷ 7 - 15 ÷ 5 = 0

           3 - 3 = 0

              0 = 0

2) (18 + 3) + 7 × 15 ÷ 5 = 0

        21 + 7 × 15 ÷ 5 = 0

        21 + 7 × 3 = 0

         21 + 21 = 0

42 ≠ 0

3) (18 + 3) × 7 - 15 ÷ 5 = 0

            21 × 7 - 15 ÷ 5 = 0

147 - 3 = 0

144 ≠ 0

4) (18 + 3) - 7 × 15 - 5 = 0

          21 -7 × 15 - 5 = 0

            21 - 105 - 5 = 0

              -89 ≠ 0

അതിനാൽ, “+, ÷ , -, ÷ ” ചിഹ്നങ്ങൾ സമവാക്യത്തെ തൃപ്തിപ്പെടുത്തുന്നു.

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