defence exam Indian Army Nursing Assistant Mock Test Series 2025 Quantitative Aptitude Ratio and Proportion Compound Ratios

যদি a ∶ b = 1 ∶ 11 এবং b ∶ c = 21 ∶ 9 হয়, তবে a ∶ c কত?

1

21 ∶ 99

2

11 ∶ 21

3

41 ∶ 33

4

16 ∶ 99

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