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Q:

यदि  (10 a3+4b3):(11a3-15b3)=7:5, तो (3a+5b):(9a-2b)=?

  • 1
    10:13
  • 2
    8:7
  • 3
    5:4
  • 4
    3:2
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Answer : 1. "10:13"

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