kid1431
04.12.2019 •
Mathematics
13) a merchant has coffee worth $60 a pound that she wishes to mix with 90 pounds of coffee worth
$90 a pound to get a mixture that can be sold for $70 a pound. how many pounds of the $60 coffee
should be used?
a) 270 pounds
b) 180 pounds
c) 90 pounds
d) 135 pounds
Solved
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Ответ:
B) 180 pounds
Step-by-step explanation:
if the mixture is in the ratio 1:1 the new mixture would cost $75
but we want a price of $ 70 so the ratio should be 2:1 that is 2 units of 60 $ coffee and 1 unit of 90$ coffee. this would give 70$ cost price .
Ответ:
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Step-by-step explanation: