यदि a : b = 4 : 5, b : c = 5 : 6 और c : d = 6 : 7 तो a : c क्या होगा –

  • 1

    3 : 4

  • 2

    2 : 3

  • 3

    4 : 5

  • 4

    5 : 6

Answer:- 2

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