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Primary 4 | Maths
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Po Yen Wang
Po Yen Wang

Primary 4 chevron_right Maths

What method should i use to solve this math question

Date Posted: 8 years ago
Views: 1480

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Vickie Wu
Vickie Wu's answer
1 answers (Tutor Details)
Draw a table listing down the 9 teams in the first row and first column. Cross out the matches between the same team and the repeated matches and you will get the answer:)
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Kelsey Ong Hui Ping
Kelsey Ong Hui Ping's answer
22 answers (Tutor Details)
Start with Team 1. It will play against teams 2,3,4,5,6,7,8,9 (total 8 games). Continue to team 2. Since it has already played with team 1, it will now match with teams 3,4,5,6,7,8,9 (total 7 games). If you can see the pattern, you can derive the answer quickly without needing to list all the matches (though it is recommended so you don't make careless mistakes). Therefore, the total number of matches will be 8+7+6+5+4+3+2+1+0=36!
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Aster
Aster's answer
6 answers (Tutor Details)