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- 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.
Question 1:
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? A. 8 kg
B. 12 kg
Feedback 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 =12kg
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 =12kg
C. 10 kg
D. 17 kg
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