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      Question

      The ratio of science books to literature books in a library

      is 7:6. If the number of science books was 28 fewer and literature books 14 more, then the numbers would be equal. Find the original number of literature
      A 125 Correct Answer Incorrect Answer
      B 173 Correct Answer Incorrect Answer
      C 252 Correct Answer Incorrect Answer
      D 100 Correct Answer Incorrect Answer
      E None of these Correct Answer Incorrect Answer

      Solution

      ATQ,

      Let the number of science and literature books be '7n' and '6n', respectively.

      So, 7n - 28 = 6n + 14

      Or, 'n' = 42

      Therefore, number of literature books = 42 × 6 = 252

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