<PRE><B>Question 1154290</B>
&lt;br&gt;
Imagine another delivery half of the second one shown -- 1 large box and 3 small boxes with a weight of 34kg.&lt;br&gt;
Now compare that to the first delivery shown.  The difference is 4 large boxes, with a difference of 61kg in weight.  So the weight of each large box is 61/4 kg.&lt;br&gt;
Use that in any of the three deliveries to determine the weight of each small box.&lt;br&gt;
With formal algebra, the solution looks virtually the same:&lt;br&gt;
5l+3s=95
2l+6s=68
l+3s=34
4l=61
l=61/4&lt;br&gt;
61/4+3s = 34
...&lt;br&gt;
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