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Pallavi can finish a sewing order in 12 days and Rohini in 18 days. They begin together, but Rohini stops 3 days before the order is complete. How many days does the whole order take?

Competition practiceTime & Work / Pipes
  • A8 2/5 days
  • B7 1/5 days
  • C9 days
  • D8 days

Step-by-Step Solution

Let the order take days. Pallavi works days and Rohini days: → → 2/5 days.
Answer: A) 8 2/5 days

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