यदि बहुलक = 70 तथा माध्य = 100 हो, तो माध्यिका का मान क्या है?

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Bihar STET Paper I: Mathematics (Held In 2019 - Shift 1)
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  1. 70
  2. 100
  3. 170
  4. 90

Answer (Detailed Solution Below)

Option 4 : 90
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Bihar STET Paper 1 Mathematics Full Test 1
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प्रयुक्त अवधारणा:

माध्य - बहुलक = 3 (माध्य - माध्यिका)

गणना:

बहुलक = 70, माध्य = 100

अतः, 100- 70 = 3(100 - माध्यिका)

30 = 300 - 3 × माध्यिका 

3 × माध्यिका = 300 - 30 = 270

माध्यिका = 270/3 = 90

अतः, सही उत्तर विकल्प 4 है।

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