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The ratios of copper to Zinc in alloys A...

The ratios of copper to Zinc in alloys A and B are 3:4 and 5:9 respectively. A and B are taken in the ratio 2:3 and melted to form a new alloy C. What is the ratio of copper to Zinc in C?
मिश्रधातु A और B में तांबा और जस्ता का अनुपात क्रमशः 3 : 4 और 5:9 है | A और B को 2 : 3 के अनुपात में लिया जाता है तथा पिघलाकर एक नयी मिश्रधातु C बनाई जाती है | C में तांबा और जस्ता का क्या अनुपात होगा ?

A

` 27 : 43`

B

`8:13`

C

`9 : 11 `

D

`3: 5`

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