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A:P:L = 2u : 9u : 8u

After the sale, 

Peaches = 9u – 12

Lemons = 8u – 60

The ratio of P : L after the sale = 6 : 5

     P                L

9u – 12       8u – 60

     6         :        5

5(9u – 12) = 6(8u – 60)

45u – 60 = 48u – 360

3u = 300

1u = 100

In the end, 19u – 124 = 1900 – 124 = 1776

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