প্রদত্ত সমীকরণটি সঠিক করার জন্য প্রদত্ত বিকল্পগুলির মধ্যে কোন দুটি সংখ্যার বিনিময় করা উচিত?

\(18 + (12 × 6) + (63 ÷ 7) × 4 +{(27)^{\frac{1}{3}}}-11=112\:\)

This question was previously asked in
SSC CGL 2022 Tier-I Official Paper (Held On : 09 Dec 2022 Shift 3)
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  1. 18 এবং 11
  2. 12 এবং 4
  3. 6 এবং 
  4. 18 এবং 12

Answer (Detailed Solution Below)

Option 3 : 6 এবং 
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Detailed Solution

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প্রদত্ত :

 

গণনা:

বিকল্প পদ্ধতি দ্বারা:

বিকল্প 1 : 18, 11 বিনিময় করে

11 + 72 + 9 x 4 + 3 - 18 = 112

11 + 72 + 36 +3 -18 = 112

⇒ 104 112

এটি সমীকরণটি সঠিক নয়।

বিকল্প 2 : 12, 4 বিনিময় করে

18 + 24 + 9 x 12 + 3 -11 = 112

⇒ 18 + 24 + 108 + 3 -11 = 112

142 ≠ 112

এটি সমীকরণটি সঠিক নয়।

বিকল্প 3: 6, 4 বিনিময় করে

⇒ 18 + 48 + 9 x 6 + 3 -11 = 112

⇒ 18 + 48 + 54 + 3 -11 = 112

112 = 112

এই সমীকরণ সঠিক

বিকল্প 4: 18, 12 বিনিময় করে

12 + 108 + 9 x 4 +3 -11 =112

⇒ 12 + 108 + 36 +3 -11 =112

148 ≠ 112

এটি সমীকরণটি সঠিক নয়।

অতএব, 'বিকল্প 3' সঠিক উত্তর।

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