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Primary 4 | Maths
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How to find number of people standing in circle
Date Posted: 4 years ago
Views: 342
Think of it as a clock face.
Between the 3rd and 8th person on one side, there is the 4th,5th,6th,7th person. That's 4 people.
So on the other side , there must also be 4 people.
They are the 9th,10th,1st and 2nd person.
In total there are 10 people.
Between the 3rd and 8th person on one side, there is the 4th,5th,6th,7th person. That's 4 people.
So on the other side , there must also be 4 people.
They are the 9th,10th,1st and 2nd person.
In total there are 10 people.
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Draw a half line, and put 3 and 8 on each side. Between 3 and 8, there's 4 people (4,5,6 and 7). Therefore there has to be 4 people on the other side as well.
Date Posted:
4 years ago
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