To determine the base number that 42 is 21% of, divide 42 by 0.21 to get 200. Thus, 42 is 21% of 200. ;
To find the number that 42 is 21% of, divide 42 by 0.21, which equals 200. Therefore, 42 is 21% of 200. This equation encapsulates the relationship between the part, the percentage, and the whole number.
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