SOLUTION: Three friends jog regularly in a park: Anna jogs every 10 days, Barbara jogs every 15 days, and Jo jogs every 14 days. One Sunday they happen to jog together. After how many day

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Question 269162: Three friends jog regularly in a park: Anna jogs every 10 days, Barbara jogs every
15 days, and Jo jogs every 14 days. One Sunday they happen to jog together.
After how many days will the three friends jog together again?
(A)150 (B) 210 (C) 350 (D) 420 (E) Never

Answer by ankor@dixie-net.com(22740) About Me  (Show Source):
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Three friends jog regularly in a park: Anna jogs every 10 days, Barbara jogs every
15 days, and Jo jogs every 14 days. One Sunday they happen to jog together.
After how many days will the three friends jog together again?
:
Find a number that is a multiple of all three numbers
15 * 14 = 210, we know 10 is also a factor since it ends in 0
:
210 days is ans