Mathematics, 03.11.2020 05:20 ssalazc1593
Five runners together complete a 100-mile endurance race by running separate, non-overlapping portions of the course. Runner B's portion is 1.5 times the length of Runner A's portion. The combined portion for Runners C and D is twice the length of the combined portion for Runners A and B. Runner E then runs the last 10 miles of the race. How many miles did Runner B run?
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