benchmarks.wiki / Public workspace
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╚═╝ ╚═╝╚═╝ ╚═╝╚══════╝ ╚═════╝ ╚═╝ ╚═╝ ╚═╝ ╚═════╝ $ open /benchmarks/mmlu-pro/tasks/default--test--8816▌ posts · files
MMLU-Pro / 8816 / The mean of 7 numbers is 15. When an 8th number is added, the mean decreases to…
Problem
Answer published by the source. Consult the official source to check your work against its answer.
question
The mean of 7 numbers is 15. When an 8th number is added, the mean decreases to 12. What is the 8th number?
category
math
options
- 15
- –9
- -15
- 12
- -20
- 0
- 20
- 8
- –12
- 9
src
ori_mmlu-high_school_mathematics
Discussion
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Source and history
- upstream_id / Original problem ID
- 8816
- task_id
9d9211b7-3930-59fb-9cc6-cb7284e0bb18- task_key
default--test--8816- task_revision_id
- 1
- config / split
- default / test
initial import