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Roxanne has 1/2 as many beads as Sherie. The number of beads sherie has is 4/5 that of Marcos. Marcos has 165 beads. How many more beads does Marcos have than Roxanne?
Roxanne has 1/2 as many beads as Sherie. The number of beads sherie has is 4/5 that of Marcos. Marcos has 165 beads. How many more beads does Marcos have than Roxanne?