जर a ∶ b = 5 ∶ 7, तर (5a + 7b) ∶ (3a + 4b) चे गुणोत्तर आहे

1
43 ∶ 74
2
76 ∶ 43
3
74 ∶ 43
4
43 ∶ 46

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