OG17-PS-228

[LimingY926]

Sorry, I couldn't find post button in OG sector thus I post it here.
Q:
[Problem deleted by Stacey]

A:
Even after see the answer explanations, I still couldn't understand the solutions.
My understanding of this question is as below
If x is the weight of X. y is the weight of Y. z is the weight of X and Y Weights of ryegrass, bluegrass and fescue are Wr, Wb, Wf
x=40% Wr +60% Wb
y=25% Wr + 75% Wf
z=30% Wr
z= ?
I couldn't solve this problem based on these information.

BTW, may I know how to post this kind of questions in OG sector

[StaceyKoprince]

Please remember to read the forum guidelines before posting. OG is a banned source; it is against copyright law to post OG questions anywhere on the web. (I know other websites do post them. We follow the law.)

A hint, though: While the problem does talk about three kinds of grass, only the ryegrass matters because the problem specifies only the percentage of ryegrass in the mixture of the two. The other two kinds of grass are irrelevant / just there to distract you. Ignore them / pretend that information doesn't exist and then try to solve.