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769

Q:

a,b,c का औसत 20 और b,c,d का औसत 25 है, यदि D = 30 हैं, तो A का मान है-

  • 1
    25
  • 2
    45
  • 3
    30
  • 4
    15
  • Show Answer
  • Workspace

Answer : 4. "15"

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