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
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23	24	25	26	27	28	29
30	31	1	2	3	4	5

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Multiple Choice Questions

How many kg of wheat costing Rs 8 per kg must be mixed with 8 Kg of wheat costing Rs 12 per Kg so th...........

Quantitative Aptitude (HARCO) Mixture and Alligation

How many kg of wheat costing Rs 8 per kg must be mixed with 8 Kg of wheat costing Rs 12 per Kg, so that there may be gain of 20% by selling the mixture of Rs 11.52 per Kg?

9 kg

17 kg

15 kg

12 kg

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Explanation:

With 20% gain and SP = 11.52, CP = (100/120)*11.52 = 9.6
By method of allegation:
1st wheat (x kg) 2nd wheat (8 kg)
8 12
. 9.6
12-9.6 9.6-8
2.4 1.6
3 : 2
So x/8 = 3/2
x = 12

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