Sun	Mon	Tue	Wed	Thu	Fri	Sat
23	24	25	26	27	28	1
2	3	4	5	6	7	8
9	10	11	12	13	14	15
16	17	18	19	20	21	22
23	24	25	26	27	28	29
30	31	1	2	3	4	5

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Multiple Choice Questions

1st mixture contains 30 zinc and rest copper and a 2nd mixture contains 20 zinc and rest copper Some...........

Quantitative Aptitude(IBPS PO) Mixture and Alligation

1st mixture contains 30% zinc and rest copper and a 2nd mixture contains 20% zinc and rest copper. Some quantity is taken out of 1st mixture and twice this quantity is taken from 2nd mixture and mixed in a bottle. Find the ratio of copper to zinc in the bottle.

31 : 12

23 : 7

22 : 13

25 : 9

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Explanation:

Let x litres taken from 1st mixture, then 2x litres from 2nd mixture.
So ratio of copper to zinc =
70% of x + 80% of 2x : 30% of x + 20% of 2x
230x : 70x
23:7

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