संख्याएँ 4, 6, 8, P, 12, 14 हैं जिनका माध्य 9 है। P का मान क्या है?

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DFCCIL Executive CBT1 Electrical 25 Aug 2023 Shift 2 Official Paper
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  1. 12
  2. 8
  3. 10
  4. 15

Answer (Detailed Solution Below)

Option 3 : 10
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दिया गया है:

संख्याएँ: 4, 6, 8, P, 12, 14

माध्य = 9

प्रयुक्त सूत्र:

विषम संख्या में पदों का माध्य = मध्य पद

सम संख्या में पदों का माध्य = दो मध्य पदों का औसत

गणना:

चूँकि 6 संख्याएँ हैं, इसलिए माध्य तीसरे और चौथे पद का औसत है।

4, 6, 8, P, 12, 14

⇒ (8 + P) / 2 = 9

⇒ 8 + P = 18

⇒ P = 10

∴ सही उत्तर विकल्प (3) है।

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