Question
During a play, 39 pupils were standing in a line at equal distances. The distance between the first pupil and the fourth pupil was 1.2 m. What was the distance between the first and the last pupil?
3 m

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During a play, 39 pupils were standing in a line at equal distances. The distance between the first pupil and the fourth pupil was 1.2 m. What was the distance between the first and the last pupil?