Current location - Health Preservation Learning Network - Slimming men and women - Gege Tian Tian has 56 extra-curricular books, and the number of extra-curricular books per capita is in double digits. How many books are there in Gege Tian Tian? How many possibilities are there?
Gege Tian Tian has 56 extra-curricular books, and the number of extra-curricular books per capita is in double digits. How many books are there in Gege Tian Tian? How many possibilities are there?
Two digits should be at least 10, each person should have at least 10 copies, and at most 56- 10=46 copies.

The natural number from 10 to 46 is 46- 10+ 1=37.

There are 37 possibilities.

I won't write the details. Anyway, neither is less than 10, and the total is 56.

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