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WAEC - Mathematics (2007 - No. 60)

The venn diagram shows the choice of food of a number of visitors to a canteen. If there were 35 visitors in all, find the value of x
5
4
3
2

解释

5 + 6 + 4 + 8 + 5 + 2 + x = 35

30 + x = 35

x = 35 - 30

x = 5

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