A trader mixes two varieties of coffee worth rs 160 per kg and 220 per kg and sells the mixture 189.20 per kg and makes a profit of 10%.In what proportion are the two varieties mixed.
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Step-by-step explanation:
sp= 189.2
p = 10%
cp= 189.2/1.1 = 172
160 220
172
48 12
160 and 220 worth coffees should be mixed in the ratio 48:12 =4:1
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