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Instructions
Consider the following information and answer questions based on it.
Among 60 students. 12 like only algebra, 13 like only geometry, 10 like only trigonometry, 5 like both algebra and trigonometry, 8 like only physics, 5 like both physics and geometry and the remaining like both algebra and physics.
Solution
Algebra and Phy = (total - algebra-phy-geometry- tri-phy and geo - algebra and tri)
             = (60-12-8-13-10-5-5)
            = 7
The ratio of students who like algebra to those who like geometry isÂ
= $$\frac{24}{18}$$ =Â Â $$\frac{4}{3}$$
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