UPSKILL MATH PLUS

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For the following frequency distribution:
 
Class Frequency
\(0-5\) \(10\)
\(5-10\) \(15\)
\(10-15\) \(12\)
\(15-20\) \(20\)
\(20-25\) \(9\)
 
The sum of the lower limit of the median class and mode class is