railway RRB Technician Grade 3 Mock Test 2024 Quantitative Aptitude Ratio and Proportion Simple Ratios

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

1
३ ∶ ७
2
७ ∶ ११
3
७ ∶ ९
4
८ ∶ ७
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