P এর \(2\over 3\) = Q এর 75% = R এর 0.6 হলে, P ∶ Q ∶ R কত?

1
6 ∶ 7 ∶ 10
2
6 ∶ 8 ∶ 9
3
9 ∶ 8 ∶ 10
4
10 ∶ 9 ∶ 8

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