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प्रश्न
If A : B = 3 : 5 and B : C = 4 : 7, find A : B : C.
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उत्तर
A : B = 3 : 5
`= 3/5 : 1` ...(Dividing by 5)
and B : C = 4 : 7
`= 1 : 7/4` ...(Dividing by 4)
∴ A : B : C = `3/5 : 1 : 7/4`
= 12 : 20 : 35 ...(Multiplying by 5 × 4 = 20)
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