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30	31	1	2	3	4	5

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Multiple Choice Questions

A and B are two alloys in which ratios of Zinc and Sulphur are 4 5 and 6 7 respectively If these equ...........

Quantitative Aptitude (IB) Mixture and Alligation

A and B are two alloys in which ratios of Zinc and Sulphur are 4:5 and 6:7 respectively. If these equally amount of two alloys are melted and made alloy C. What will be the ratio of Zinc and Sulphur in alloy C?

27:32

32:27

15:22

53:64

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Explanation:

Zinc in Alloy A=4/9
Zinc in Alloy B=6/13
Sulphur in Alloy A=5/9
Sulphur in Alloy B=7/13
Then in alloy C Zinc : Sulphur
4/9+6/13 : 5/9+7/13
106/117: 128/117
=53:64.

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