2A = 3B, 2B = 5C এবং 3C = 4D হলে A : B : C : D = কত?

A 4 : 8 : 15 : 20

B 6 : 10 :15 : 30

C 4 : 6 : 15 : 20

D 15 : 10 : 4 : 3

Solution

Correct Answer: Option D

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