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7.	The numbers 1 - 9 can be placed in the nine circles below in such a way that both sets of crossed circles can add up to 26. From the numbers already given, where would the number 1 go? It can be placed in either one of two circles.

Answer

7.

8.	In a group of 28 junior high school students, 7 take French, 10 take Spanish, and 4 take both languages. The students taking both French and Spanish are not counted with the 7 taking French or the 10 taking Spanish. How many students are not taking either French or Spanish?.

Answer

Seven students are not taking a language. Add 7 + 10 +4 to get 21. Then subtract 21 from the total students: 28 - 21 = 7.