Question

`10` identical books cost more than `11` dollars, and `9` books of the same type cost less than `10` dollars. How much does one book cost?

Difficulty level (1 very easy - 10 very hard): 3

Topics:
Algebra -> Inequalities Algebra -> Word Problems Combinatorics -> Case Analysis / Checking Cases -> Processes / Procedures
诇讬讗诇 讘讚砖 Avatar
诇讬讗诇 讘讚砖 - 3 years ago
讬砖 讟注讜转 讘转砖讜讘讛 爪专讬讻讬诐 诇讻转讜讘 1.11 讜诇讗 111

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