Four students, Ayesha, Esha, Meera and Shirin, each study a different subject among Mathematics, History, Biology and English, and each comes from a different city among Lahore, Chittagong, Delhi and Karachi. Meera is not from Chittagong. Meera is not from Karachi. Esha is not from Karachi. The student of History is not from Karachi. The student of Mathematics is from Lahore. The student of English is not from Delhi. Meera is not from Lahore. Shirin is not from Lahore. Shirin is not from Karachi. The student of History is not from Delhi. Which city is the student of Biology from?
Correct answer B. Delhi
Explanation
The only arrangement satisfying every clue is Ayesha: English, Karachi; Esha: Mathematics, Lahore; Meera: Biology, Delhi; Shirin: History, Chittagong. Hence the Biology student, Meera, is from Delhi.
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