The median value of 5 whole numbers is 20. What is the least value of the mean?
There are two numbers less than 20: 0 and 0 are the smallest
There are two numbers greater than (or equal to ) 20: 20 and 20 are the smallest
Total = 0 + 0 + 20 + 20 + 20 = 60
Least value of mean = 60/5 =12
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