যদি P ∶ Q = 6 ∶ 5 এবং Q ∶ R = 3 ∶ 4 হয়, তাহলে Q ∶ (P + R) এর মান কত?

1
15 ∶ 37
2
14 ∶ 37
3
13 ∶ 38
4
15 ∶ 38

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