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Alloy A contains metal x and y only in the ratio 5 : 2 and alloy B contains these metal in the ratio 3 : 4. Alloy C is prepared by mixing A and B in the ratio 4 : 5. The percentage of x in alloy C is:
मिश्र धातु A में धातु x और y केवल 5: 2 के अनुपात में होते हैं और मिश्र धातु B में ये धातु 3: 4 के अनुपात में होते है। मिश्र धातु C में A और B को 4 : 5 में मिश्रण करके तैयार की जाती है। मिश्रधातु C में x का प्रतिशत है:

A

`44 4/9`

B

56

C

45

D

`55 5/9`

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