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Six workers can build a wall in 12 days. How many days will eight workers take to build the same wall, working at the same rate?

Class 8Direct and Inverse ProportionsDirect and Inverse Proportions
  • A16 days
  • B10 days
  • C9 days
  • D14 days

Step-by-Step Solution

More workers, fewer days: inverse proportion. Total work worker-days, so 8 workers need days. (16 days treats it as direct proportion.)
Answer: C) 9 days

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