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

Question

Mathematics

Donavan Potts

8 January, 15:27

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

+2

Answers (1)

Know the Answer?

Kate Conway · Answer 1

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.

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 coffeeshould be used?A) 270 poundsB) 180 poundsC) 90 poundsD) 135 pounds

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