कार्यालय A, B, C और D में औसत कर्मचारी 40 हैं और कार्यालय B, C, D और E के औसत कर्मचारी 37 हैं। यदि कार्यालय E में कर्मचारियों की संख्या 30 है। कार्यालय A और E में औसत कर्मचारी ज्ञात कीजिए। 

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  1. 42
  2. 45
  3. 39
  4. 36
  5. 37

Answer (Detailed Solution Below)

Option 4 : 36
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गणना

A+B+C+D का औसत = 40 ⇒ योग = 160
B+C+D+E का औसत = 37 ⇒ योग = 148
घटाएँ: A − E = 12
E = 30 ⇒ A = 42
A और E का औसत = (42 + 30)/2 = 36

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