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Of the 1000 inhabitants of a town 60 % are males of whom 20 % are literate. If of all the inhabitants 25 % are literate. Then what percent of the females of the town are literate?

Correct answer: C. 32. 5 %

  • A. 22. 5 %
  • B. 27.5 %
  • C. 32. 5 %
  • D. 37.5 %

Explanation

There are 600 males, and 20% of them are literate, giving 600 × 20/100 = 120 literate males. Total literate inhabitants are 1000 × 25/100 = 250, so literate females are 250 − 120 = 130; with 400 females, the percentage is 130/400 × 100 = 32.5%. A student may choose b, 27.5%, by subtracting the male literacy percentage directly from the total literacy percentage.

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