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Title: Winners of the Forum Event. Congratulations! [Print this page]

Author: COTK-Chen Time: 2018-5-21 14:24
Title: Winners of the Forum Event. Congratulations!
Dear players,
Forum Event "The Interesting Math Question Can Relax You!" from May.18th to May.20th has ended. Thanks for your active participation and answers. This time only a few people answered right, so we increase the rewards for winners that have right answer. But we have also prepared some rewards for players who join our events. Now, we announce the answer and winners. If any other players answer the question correctly, but you aren't on the following list. Please contact us in forum and write your right ign and server. Congratulations!
Answer:
A, B, and C runs at constant speed.
When A finishes the 100M race, B is 10M behind A. This means B’s speed is (100-10)/100=90% of A’s Speed.
When B finishes the 100M race, C is 20M behind B. This means C’s speed is (100-20)/100=80% of B’s speed.
So C’s speed is 90%x80%=72% of A’s speed.
When A finishes the race, C has only run for 72%x100M = 72M. So the distance between C and A when A finishes the race is 100-72=28M.
So C is 28Meter from A when A finishes the race.
Winners:

[attach]16410[/attach]

Participants:

[attach]16409[/attach]

[attach]16408[/attach]

[attach]16407[/attach]

Author: minniedt Time: 2018-5-21 14:27
Hii, I provided the answer but forgot to put my id. can you please review?
Thanks

Author: COTK-Chen Time: 2018-5-21 15:17

minniedt replied at 2018-5-21 14:27
Hii, I provided the answer but forgot to put my id. can you please review?
Thanks

Ok, dear sir, please provide us your ign and server, thanks.

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