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In a class of 160 students, the number of students studying German

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In a class of 160 students, the number of students studying German [#permalink]

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In a class of 160 students, the number of students studying German and French is how much greater than the number of students studying neither German nor French?

1. The number of students studying German is 90.
2. The number of students studying French is 85.
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Re: In a class of 160 students, the number of students studying German [#permalink]

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Turkish wrote:
In a class of 160 students, the number of students studying German and French is how much greater than the number of students studying neither German nor French?

1. The number of students studying German is 90.
2. The number of students studying French is 85.



Neither statement alone gives enough information but using both statements together, you get

Total = n(G) + n(F) - Both + None

160 = 90 + 85 - Both + None

Both - None = 15

Number of students studying both is 15 more than the number of students studying neither. Sufficient.

Answer (C)
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Re: In a class of 160 students, the number of students studying German [#permalink]

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New post 29 Aug 2017, 19:36
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Re: In a class of 160 students, the number of students studying German   [#permalink] 29 Aug 2017, 19:36
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