A company ABC printed different numbers of books in different years 1947, 1956, 1987, 1998, and 2002 such that the number of books printed was not the same in any year. 66 books were printed in an odd-numbered year which is not 1947. The number of books printed in 1947 is 10 less than that printed in 1987. 59 books were printed in a year before the year in which 61 books were printed, but not immediately before. The number of books printed in 2002 is 2 more than that printed in 1998. What is the difference between the number of books printed in 1956 and 2002?

Correct answer: 8

Solution

The clues create a unique assignment of book counts to years. Once the values are placed consistently, the numbers for 1956 and 2002 differ by 8. The answer follows directly from the completed arrangement.

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