Question

Coffee costing ₹ 250 per kg was mixed with chicory costing ₹ 75 per kg in the ratio 5 : 2 for a certain blend. If the mixture was sold at ₹ 230 per kg, find the gain or loss per cent.​

Answer 1

ʜᴇʀᴇ ɪs ᴜʀ ᴀɴsᴡᴇʀ

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cost of coffee=250 per kg.

cost of chicory =75 per kg

coffee: chicory 5:2

if the weight of mixture is 1 kg.

75x+2x=1

⇒7x=7

⇒x=1

∴ weight of coffee = 75x=75 kg

weight of chicory = 72x=72 kg

cost of 75 kg coffee = 75×250=71250

cost of 72 kg chicory = 72×75=7150

total cost of 1 kg mixture = 71250+7150

cost price of 1 kg mixture = 71400=200 Rs

selling of 1 kg minute = 230 Rs

gain or loss = CPSP