state gov BPSC LDC Mock Test 2021 Quantitative Aptitude Ratio and Proportion Simple Ratios

যদি p ∶ q = 2 ∶ 3 এবং q ∶ r = 5 ∶ 7 হয়, তবে p ∶ q ∶ r এর মান কত?

1
21 ∶ 15 ∶ 10
2
10 ∶ 15 ∶ 21
3
12 ∶ 15 ∶ 22
4
15 ∶ 10 ∶ 22
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