mixture problem

• August 5th 2012, 09:06 AM
rcs
mixture problem
find the cost per kilo of a coffee mixture made from 8 kls of coffee that cost $90 pero kilo and 12 kls of coffee that cost$55 pero kilo.

thanks
• August 5th 2012, 09:16 AM
skeeter
Re: mixture problem
Quote:

Originally Posted by rcs
find the cost per kilo of a coffee mixture made from 8 kls of coffee that cost $90 pero kilo and 12 kls of coffee that cost$55 pero kilo.

cost/kilo = $\frac{8 \cdot 90 + 12 \cdot 55}{8 + 12}$
• June 25th 2013, 03:09 AM
brosnan123
Re: mixture problem
8 kls = $90.00 = 90*8 =720--------- 1 12 kls =$55.00 = 55*12 = 660 --------- 2
Then the mixture of both is 20 Kls
Total of equation 1 & 2 is 1380
So , the mixture of 1 kls = (1380/20) = \$69 / kls