SOLUTION: Four boys step off from the same place.If their steps measure 16cm, 28cm40cm and 77cm respectively,at what distance from the starting point will they again steo together

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Question 697547: Four boys step off from the same place.If their steps measure 16cm, 28cm40cm and 77cm respectively,at what distance from the starting point will they again steo together
Answer by ankor@dixie-net.com(22740) About Me  (Show Source):
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Four boys step off from the same place.If their steps measure 16cm, 28cm 40cm and 77cm respectively,
at what distance from the starting point will they again step together?
:
Prime factor each value
16: 2*2*2*2
28: 2*2*7
40: 2*2*2*5
77: 7*11
:
Least common multiple 2*2*2*2*5*7*11 = 6160 cm they should be in step again
:
:
AT that time:
1st boy will take: 385 steps
2nd boy will take: 220 steps
3rd boy will take: 154 steps
4th boy will take: 80 steps