Mean (Average) = (Sum of all ages) / (Number of people) Mean = (25 + 28 + 30 + 32 + 35 + 35 + 38 + 40 + 42 + 45) / 10 Mean = 350 / 10 Mean = 35 To calculate the median, first, arrange the ages in ascending order: 25, 28, 30, 32, 35, 35, 38, 40, 42, 45. Since there are 10 numbers, the median will be the average of the 5th and 6th numbers, which are both 35. Median = (35 + 35) / 2 Median = 35
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Pipe ‘A’ can fill a tank in 30 hours whereas leak ‘A’ can empty it in 40 hours. If they both operate along with pipe ‘B’, then the given tan...
Pipe ‘A’ can fill a tank in 25 hours while pipe ‘B’ can empty it in 30 hours. They were operated on alternate hours starting with pipe ‘A’. ...
