Teaching UP B.Ed (Paper 1 & 2) Mock Test 2025 Quantitative Aptitude Ratio and Proportion Simple Ratios

যদি 2a ∶ 3b = 5 ∶ 6 এবং 4c ∶ 5b = 1 ∶ 2 হয়, তাহলে a ∶ b ∶ c কত?

1
5 ∶ 10 ∶ 8
2
8 ∶ 10 ∶ 5
3
10 ∶ 8 ∶ 5
4
5 ∶ 8 ∶ 10
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