There are n books in a shelf. If you divide the books into groups of 9, no books are left but if you divide them into groups of 11, 7 are left. How many different values can n take? (Capacity of the shelf is 1000)
A
10
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B
12
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C
9
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D
8
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Solution
The correct option is A 10 Option A is the correct answer. Check the video for the approach.