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प्रश्न
In a morning walk, three persons step off together. Their steps measure 80 cm, 85 cm, and 90 cm respectively. What is the minimum distance each should walk so that all can cover the same distance in complete steps?
योग
उत्तर
The distance covered by each one of them is required to be the same as well as a minimum. The required minimum distance each should walk would be the lowest common multiple of the measures of their steps.
Thus, we find the LCM of 80, 85, and 90.
The LCM of 80, 85, and 90 is 12240.
The required minimum distance is 12240 cm.
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