2. 外语
  3. ______ is 30% of 20.

______ is 30% of 20.

admin2011-03-08  18
问题 ______ is 30% of 20.
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答案 To solve this problem, set up a proportion. You are looking for a number that is 30% of 20. The proportion will be x/20=30/100. because the unknown number is 30% of the whole (20). To solve, cross-multiply, leaving you with 100x=600. Divide both sides by 100, and you get the final answer: x=6.
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