Question 419129
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A glue company needs to make some glue tat it can sell at $120 per barrel.
It wants to use 150 barrels of glue worth $100 per barrel, along with glue worth $150 per barrel 
and glue worth $190 per barrel.
It must use the same number of barrels of $150 and $190 glue.
How much of the $150 and $190 glue will be needed? How many Barrels of $120 glue will be produced?
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        The solution and the answer in the post by @mananth both are incorrect.

        I came to bring a correct solution.



$100  -----150barrels
$150------- x
$190-------x


Mix $120  = 150+2x 

100*150 + 150x + 190x = 120*(150 + 2x)
15000 + 340x = 240x + 18000
100x = 3000
x = 30 barrels at $150 and $190.    &nbsp;&nbsp;&nbsp;&nbsp;<<<---===  &nbsp;&nbsp;<U>ANSWER</U>


Solved correctly.