Assume that 155 students are surveyed and every student takes at least one of the following languages. The results of the survey are as follows: 87 take French 83 take German 44 take French and German 40 take
Assume that 155 students are surveyed and every student takes at least one of the following languages. The results of the survey are as follows: 87 take French 83 take German 44 take French and German 40 take
Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
Section: Chapter Questions
Problem 1RQ
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Assume that 155 students are surveyed and every student takes at least one of the following languages. The results of the survey are as follows:
87 take French
83 take German
44 take French and German
40 take German and Russian
21 take French as their only foreign language
22 take French, Russian, and German
1. How many take Russian?
2. How many take French and Russian but not German?
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