The percent of increase is 19.6%.
According to the given question.
Innital lenght = 46m
Final length = 55m
So, increase in the length = 55m - 46m = 9m
Therefore,
The percent of increase
= increase in the length/original length × 100
= 9/46 × 100
= 0.195 × 100
= 19.56%
= 19.6%
Hence, percent of increase is 19.6%.
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