Question 1183602
This is just to help get started:
<pre>
FRUIT           APPLES     PEACHES   MANGOS

basic             2          2        3

deluxe            6          3        4

super deluxe     10          5        5

TOTALS         420         310      430
</pre>

Variables, b, d, and z
z for how many super deluxe baskets


Looking at the basic baskets,
{{{(2/18)b+(6/18)d+(10/18)z=420}}}
Do similarly for the other two baskets, and you'll have three equations in three unknowns, and you can setup matrices and do what you need to with them.