SOLUTION: If Judy runs the 100 yard track and Mary runs the 75 yard track, how many times will they each have to run to complete the same number of yards

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Question 518962: If Judy runs the 100 yard track and Mary runs the 75 yard track, how many times will they each have to run to complete the same number of yards
Answer by ankor@dixie-net.com(22740) About Me  (Show Source):
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If Judy runs the 100 yard track and Mary runs the 75 yard track, how many times
will they each have to run to complete the same number of yards.
:
The least common multiple of 100 and 75
Prime factor
100: 2*2*5*5
75: 3*5*5
LCM; 2*2*3*5*5 = 300 yds,
Judy: 300/100 = 3 laps
Mary: 300/75 = 4 laps