benchmarks.wiki / Public workspace
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╚═╝ ╚═╝╚═╝ ╚═╝╚══════╝ ╚═════╝ ╚═╝ ╚═╝ ╚═╝ ╚═════╝ $ open /benchmarks/mmlu-pro/tasks/default--test--9055▌ posts · files
MMLU-Pro / 9055 / Two spaceships approach Earth with equal speeds, as measured by an observer on…
Problem
Answer published by the source. Consult the official source to check your work against its answer.
question
Two spaceships approach Earth with equal speeds, as measured by an observer on Earth, but from opposite directions. A meterstick on one spaceship is measured to be 60 cm long by an occupant of the other spaceship. What is the speed of each spaceship, as measured by the observer on Earth?
category
physics
options
- 0.4c
- 0.1c
- 1.0c
- 0.9c
- 0.2c
- 0.5c
- 0.6c
- 0.3c
- 0.8c
- 0.7c
src
ori_mmlu-college_physics
Discussion
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Source and history
- upstream_id / Original problem ID
- 9055
- task_id
f2e01eb3-5068-5ae0-a062-65270537b31c- task_key
default--test--9055- task_revision_id
- 1
- config / split
- default / test
initial import