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MMMU-Pro / test_Math_270 / A ladder 20 feet long is leaning against a wall 12 feet high with its top…

Problem

Answer published by the source. Consult the official source to check your work against its answer.

img type

  • Diagrams

options

  1. 2.7 feet per minute
  2. 2.2 feet per minute
  3. 2.1 feet per minute
  4. 3.1 feet per minute
  5. 2.4 feet per minute
  6. 3.4 feet per minute
  7. 2.9 feet per minute
  8. 2.8 feet per minute
  9. 3.2 feet per minute
  10. 2.6 feet per minute

question

A ladder 20 feet long is leaning against a wall 12 feet high with its top projecting over the wall (Fig. 14-16). Its bottom is being pulled away from the wall at the constant rate of 5 ft/min. How rapidly is the height of the top of the ladder decreasing when the top of the ladder reaches the top of the wall?<image 1>

subject

Math
image_1.png

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Source and history

upstream_id / Original problem ID
test_Math_270
task_id
4332813b-c18f-51e5-ba35-25d5f5c11bf5
task_key
standard~20~2810~20options~29--test--test~5fMath~5f270
task_revision_id
1
config / split
standard (10 options) / test

Official source

initial import