In a morning walk 3 girls step together, their steps measures 80cm, 85cm,90cm respectively, what minimum distance should each walk so that all can cover the distance in complete steps

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Solution

Minimum distance that each should walk = LCM of 80, 85 and 90.

80 = 2 x 2 x 2 x 2 x 5
85 = 17 x 5
90 = 2 x 3 x 3 x 5

LCM = 2 x 2 x 2 x 2 x 3 x 3 x 5 x 17 = 12240
Therefore, the minimum distance each should walk = 122 m 40 cm

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In a morning walk 3 girls step together, their steps measures 80cm, 85cm,90cm respectively, what minimum distance should each walk so that all can cover the distance in complete steps

Minimum distance that each should walk = LCM of 80, 85 and 90. 80 = 2 x 2 x 2 x 2 x 5 85 = 17 x 5 90 = 2 x 3 x 3 x 5 LCM = 2 x 2 x 2 x 2 x 3 x 3 x 5 x 17 = 12240 Therefore, the minimum distance each should walk = 122 m 40 cm

Minimum distance that each should walk = LCM of 80, 85 and 90.

80 = 2 x 2 x 2 x 2 x 5
85 = 17 x 5
90 = 2 x 3 x 3 x 5

LCM = 2 x 2 x 2 x 2 x 3 x 3 x 5 x 17 = 12240
Therefore, the minimum distance each should walk = 122 m 40 cm