7. coffee costing rupees 250 per kg was mixed with chicory costing 75 rupees per kg in the ratio 5 ratio to for a certain blend-if the mixture was sold at 2:30 rupees per kg find the gain or loss percent??
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8th
Maths
Comparing Quantities
Prices Related to Buying and Selling
Coffee costing Rs. 250 per ...
MATHS
Coffee costing Rs.250 per kg was mixed with chicory costing Rs.75 per kg in the ratio 5:2 for a certain blend. If the mixture was sold at Rs.230 per kg , find the gain or loss per cent.
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ANSWER
cost of coffee=250 per kg.
cost of chicory =75 per kg
coffee: chicory 5:2
if the weight of mixture is 1 kg.
7
5x+2x
=1
⇒7x=7
⇒x=1
∴ weight of coffee =
7
5x
=
7
5
kg
weight of chicory =
7
2x
=
7
2
kg
cost of
7
5
kg coffee =
7
5
×250=
7
1250
cost of
7
2
kg chicory =
7
2
×75=
7
150
total cost of 1 kg mixture =
7
1250
+
7
150
cost price of 1 kg mixture =
7
1400
=200 Rs
selling of 1 kg minute = 230 Rs
gain or loss =
CP
SP−CP
×100=
200
230−200
×100
=
2
30
=15%
since its positive, the mixture was sold at a gain of 15%.
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