যে উপায়ে দ্বিতীয় সংখ্যাটি প্রথম সংখ্যার সাথে সম্পর্কিত ঠিক সেই উপায়ে তৃতীয় সংখ্যার সাথে সম্পর্কিত বিকল্পটি নির্বাচন করুন।

21 : 11 :: 31 : ?

This question was previously asked in
RRB NTPC CBT-I Official Paper (Held On: 28 Dec 2020 Shift 1)
View all RRB NTPC Papers >
  1. 16
  2. 15
  3. 17
  4. 18

Answer (Detailed Solution Below)

Option 1 : 16
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Detailed Solution

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এখানে,

\( {21 + 1 \over 2}\) = 11

→ 21 : 11

একইভাবে ,

\( {31 + 1 \over 2}\) = 16

→ 31 : 16

সুতরাং, 16 হল  সঠিক উত্তর।

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