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Question 142
At an institute, 99% of the 100 students areĀ girls but only 98% of the students living onĀ the compus are girls. If same girls live onĀ campus, how many students live offĀ compus ?
Solution
Total students = 100 andĀ Number of girls = 99, Number of boys = 1
Let number of students living off campus = $$x$$, and number of students living on campus = $$(100-x)$$
2% of boys live on campus (since there is only 1 boy)
=> $$\frac{2}{100}\times(100-x)=1$$
=> $$100-x=50$$
=> $$x=50$$
=> Ans - (C)
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