Question
R attends the exam on which of the following
subjects? Read the following information carefully and answer the questions given below. Seven persons P, Q, R, S, T, U and V are attending seven different exams on different subjects viz., Physics, Maths, English, GK, Social science, Biology and Computer on different days of the same week starts from Monday to Sunday. The given information is not necessary in the same order. Some of them are male and some of them are female persons. Q, she attends the exam immediately before the one who attends Maths exam. As many persons attend the exams before V is same as after the one who attends the Social science exam. V attends the exam immediately after the one who attends the GK exam and she does not attend the Social science exam. Three persons attends the exams between the one who attends Maths exam and P and both of them does not attend the exam on first or last day of the week Only one person attends the exam between U and the one who attends Physics exam. The one who attends the Physics exam is not a female person. More than two persons attend the exams between R and the one who attends the Computer exam. P and the one who attends Biology exam belongs to the same gender. V does not attend the exam on last day of the week. .R does not attend the Biology exam. The one who attends the exam on last day and on the Tuesday are does not belong to the same gender. U attend the exam immediately before his brother S attends the exam. The persons attend the exams immediately before and after P are does not belong to the same gender.Solution
Three persons attend the exams between the one who attends Maths exam and P and both of them does not attend the exam on first or last day of the week. Q, she attends the exam immediately before the one who attends Maths exam. 
V attends the exam immediately after the one who attends the GK exam and she does not attend the Social science exam. As many persons attend the exams before V is same as after the one who attends the Social science exam. V does not attend the exam on last day of the week. 
U attends the exam immediately before his brother S attends the exam. Only one person attends the exam between U and the one who attends Physics exam. The one who attends the Physics exam is not a female person. So, Case-2(b) will be dropped this is because the person who attends physics is a male person we can’t fix physics for female candidates. 
The persons attend the exams immediately before and after P are does not belong to the same gender. So, Case-1(b) will be dropped. More than two persons attend the exams between R and the one who attends the Computer exam. 
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