diy jewelry wholesale kit Each classmate in Class 9 1 can exchange small gifts with the classmates. A total of 1,560 small gifts in the class can be exchanged for the whole class. How many students are seeking Class 9?
3 thoughts on “diy jewelry wholesale kit On the New Year's Day, each classmate of Class 9 (1) exchanged a self -made small gift with the whole class. As a result, the whole class exchanged a total of 1560 small gifts”
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wholesale rebel jewelry Solution: There are X (X-1) = 1560 solution X1 = 79 X2 = -39 (not in line with the meaning of the question).
wholesale jewelry accessories asos The mathematical problem of the combination of this matter is not a etiquette problem
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