यदि a: b = 4:3, 3b = 5c और 4c = 9d, तो a:d है-
If a : b = 4:3, 3b = 5c and 4c = 9d, then a : d is-

  • 1

    1:5 

  • 2

    5 : 1 

  • 3

    9:1 

  • 4

    9:4

Answer:- 2

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