These are the means and standard deviations for samples of heights from two kinds of trees. Tree A = Mean: 25ft = standard deviation: 5ft. Tree B = Mean: 60ft = Standard Deviation: 12ft

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Which one ? is the answer and how to find this answer

Haruka hiked several kilometers in the morning. she hiked only 66 kilometers in the afternoon, which was 25% less than she had hiked in the morning. how many kilometers did haruka hike in all?