5 এর তিনটি ক্রমাগত গুণকের যোগফল হ'ল 285। বৃহত্তম সংখ্যাটি নির্ণয় করুন।   

  1. 75
  2. 100
  3. 120
  4. 90

Answer (Detailed Solution Below)

Option 2 : 100
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প্রদত্ত:

5 এর তিনটি ক্রমাগত গুণকের যোগফল হ'ল 285

গণনা:

ক্রমাগত তিনটি সংখ্যা হল x, x + 1 এবং x + 2  

সুতরাং, 5 এর ক্রমাগত তিনটি গুণকগুলি হ'ল 5x, 5 (x + 1) এবং 5 (x + 2)  

5 এর তিনটি ক্রমাগত গুণকের যোগফল হ'ল 285

∴ 5x + 5x + 5 + 5x + 10 = 285

⇒ 15x = 270

⇒ x = 18

এখন, বৃহত্তম সংখ্যা = 5 (x + 2) = 5 × 20 = 100

বৃহত্তম সংখ্যাটি হ'ল 100 
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