The largest number of dress length that could be cut is 66.
The dressmaker measures a length of fabric as 600 meters correct to the nearest 5 meters.
He cuts this into dress lengths of 9cm correct to the nearest meters.
The largest number of complete dress length he could cut can be calculated as follows:
largest number of dress length cut = 600 / 9
largest number of dress length cut = 66.6666666667
largest number of dress length cut ≈ 66
Therefore, the largest number of dress length that could be cut is 66.
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