Reasoning : Logical Reasoning & Analytical Ability

Q 176 / 325

UPSC CSE Prelims 2017

In a school, there are five teachers A, B, C, D and E. A and B teach Hindi and English. C and B teach English and Geography. D and A teach Mathematics and Hindi. E and B teach History and French. Who teaches maximum number of subjects?

EXPLANATION

Correct Option (B)

Based on the provided information, the subjects taught by each teacher are determined as follows:

  • Teacher A teaches Hindi, English (from "A and B teach Hindi and English"), and Mathematics (from "D and A teach Mathematics and Hindi"). This totals 3 subjects.
  • Teacher B teaches Hindi, English (from "A and B teach Hindi and English"), Geography (from "C and B teach English and Geography"), History, and French (from "E and B teach History and French"). This totals 5 subjects.
  • Teacher C teaches English and Geography (from "C and B teach English and Geography"). This totals 2 subjects.
  • Teacher D teaches Mathematics and Hindi (from "D and A teach Mathematics and Hindi"). This totals 2 subjects.
  • Teacher E teaches History and French (from "E and B teach History and French"). This totals 2 subjects.

Comparing the number of subjects taught by each teacher, Teacher B teaches the maximum number of subjects (5).

Incorrect Options:

  • Option A: Teacher A teaches Hindi, English, and Mathematics, totaling 3 subjects. This is fewer than the 5 subjects taught by Teacher B.
  • Option D: Teacher D teaches Mathematics and Hindi, totaling 2 subjects. This is fewer than the 5 subjects taught by Teacher B.
  • Option E: Teacher E teaches History and French, totaling 2 subjects. This is fewer than the 5 subjects taught by Teacher B.