Three children are walking. Their steps measure 36 cm,72 cm and 90 cm. If they step from a line ab and their steps will fall together again at line CD. What is the distance between AB and CD?

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360cm
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LCM of 36,72 and 90 i.e., 360 cm.
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We will take LCM of the three numbers given which actually comes out to be 360cm.
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Tutor (School curriculum, Engineering and Software)

360
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computer geek

360
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Basic Economics

This is the LCM of 3 no.s ans is 360
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Math Magician

360
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Tutor

For this we have take LCM of 36,72,90 is.e 360 cm
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The answer would be 360 cm given the condition they can take different no of steps.The first child would take 10 steps to reach Line CD from AB ,the second 5 steps and the last child 4 steps.The concept of LCM can be applied to arrive at the answer logically.(since one of the child has multiple of 10...
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The answer would be 360 cm given the condition they can take different no of steps.The first child would take 10 steps to reach Line CD from AB ,the second 5 steps and the last child 4 steps.The concept of LCM can be applied to arrive at the answer logically.(since one of the child has multiple of 10 as the step distance it is easy to arrive at the answer as it should also be a multiple of 10 and end with a zero). read less
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Computer Wizard

360
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