Question

8. In a morning walk, three persons step off together. Their steps measure 20cm, 25cm and 30cm respectively. What is the minimum distance each one should walk so that all can cover the same distance in complete steps?
Plz tell fast

Answer 1

Answer:

20 cm

Step-by-step explanation:

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Answer 2

$40 = 2³ \times 5 \\ 42 = 2 \times 3×7 \\ 45 = 3² \times 5 \\ LCM(40, \: 42, \: 45) \: = 2³ \times 3² \times 5 \times 7 \: = 2520 \: cm \:$

So, the minimum distance that each should walk is 2520 cm.