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Alloy A contains copper and Zinc in the ...

Alloy A contains copper and Zinc in the ratio of 4:3 and alloy B contains copper and Zinc in the ratio of 5:2. A and B are taken in the ratio of 5:6 and melted to form a new alloy. The percentage of Zinc in the new alloy is closest to :
मिश्रधातु A में तांबा और जस्ता 4 : 3 के अनुपात में हैं तथा मिश्रधातु B में तांबा और जस्ता 5 : 2 के अनुपात में हैं| A और B को 5: 6 के अनुपात में लिया जाता है तथा उन्हें पिघलाकर एक नयी मिश्रधातु का निर्माण किया जाता है | इस नयी मिश्रधातु में जस्ता का प्रतिशत लगभग कितना है ?

A

54

B

34.2

C

36.8

D

35

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