Answer : 3 3:2

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If (4a2- 3b2):(2a2 5b2)=12:19, then a:b=___

Answer : 3 3:2

**Click [here](https://www.examsbook.com/questions/if-(4a2--3b2):(2a2 5b2)=12:19,-then-a:b=___) to see the full blog post**