Directions: Study the information carefully and then answer the question: P, Q, R, S, T, U and V are seven professors. Each one teaches a different subject from Physics, Chemistry, Biology, English,…
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Directions: Study the information carefully and then answer the question:
P, Q, R, S, T, U and V are seven professors. Each one teaches a different subject from Physics, Chemistry, Biology, English, Mathematics, Economics and Geography, but not necessarily in that same order. Each of them teaches one day each on the seven days of the week from Monday to Sunday not necessarily in the order. R teaches Biology on Friday. Q teaches Mathematics on the previous day of the day on which professor teaches Physics. V teaches on Sunday, but does not teach Chemistry or English. S teaches Economics on the previous day on which U teaches. P teaches Geography on Tuesday. T does not teach English.
P, Q, R, S, T, U and V are seven professors. Each one teaches a different subject from Physics, Chemistry, Biology, English, Mathematics, Economics and Geography, but not necessarily in that same order. Each of them teaches one day each on the seven days of the week from Monday to Sunday not necessarily in the order. R teaches Biology on Friday. Q teaches Mathematics on the previous day of the day on which professor teaches Physics. V teaches on Sunday, but does not teach Chemistry or English. S teaches Economics on the previous day on which U teaches. P teaches Geography on Tuesday. T does not teach English.
Which subject does T teach?
- Chemistry
- Physics
- Biology
- Data inadequate
Answer and explanation
Correct answer: A - Chemistry
Fixed: P Geography Tue, R Biology Fri, V Sun. The free days are Mon, Wed, Thu and Sat. Q (Maths) and the Physics teacher, and S (Economics) and U, each need consecutive days. The only consecutive pairs are Wed-Thu and Sat-Sun. U cannot be on Sunday, so Q is Sat and V (Sun) teaches Physics, S is Wed, U is Thu and T is Mon. T and U share Chemistry and English, and T does not teach English, so T teaches Chemistry.
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CUSAT CAT Five-Year LL.B.
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