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JEE Mains · Maths · STD 11 - 13. statistics

वर्धमान क्रम में निम्न दस संख्याओं \(10,22,26,29\), \(34, x 42,67,70, y\) के माध्य तथा माध्यिका क्रमश: \(42\) तथा \(35\) हैं, तो \(\frac{ y }{ x }\) बराबर है 

  1. A \(\frac{7}{3}\)
  2. B \(\frac{9}{4}\)
  3. C \(\frac{7}{2}\)
  4. D \(\frac{8}{3}\)
Verified Solution

Answer & Solution

Correct Answer

(A) \(\frac{7}{3}\)

Step-by-step Solution

Detailed explanation

means \(=42\) \( \Rightarrow \frac{{10 + 22 + 26 + 29 + 34 + x + 42 + 67 + 70 + y}}{{10}} = 45\) \( \Rightarrow x + y = 120\,\,\,\,......\left( i \right)\) and median \(=35\) \( \Rightarrow \frac{{34 + x}}{2} = 35 \Rightarrow x = 36\) from \((i)\) \(y = 84\)…
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