यदि 21a + 21b = 1134 है, तो a + b का औसत क्या है?

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CSIR-CLRI JSA 2024 Official Paper-I (Held On: 16 Feb, 2025)
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  1. 29
  2. 27
  3. 58
  4. 54

Answer (Detailed Solution Below)

Option 2 : 27
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दिया गया है:

21a + 21b = 1134

प्रयुक्त सूत्र:

a + b का औसत = (a + b)/2

गणना:

21(a + b) = 1134

⇒ a + b = 1134/21

⇒ a + b = 54

a + b का औसत = 54/2

⇒ a + b का औसत = 27

∴ सही उत्तर विकल्प (2) है।

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