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Jack was able to sell $30$\% of his vegetables before noon. If he had 200 pounds of vegetables in the morning, how many pounds of vegetables was he able to sell by noon? 
Overseas Competition->Knowledge Point->Word Problem Modules->Solving Problems Involving Fractions and Percentages->Percentages Word Problems
$200 \times 30$\%=$60$,  He was able to sell $60$ pounds of vegetables by noon. 