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Mohan can complete a job in 24 days and Sohan in 12 days. If they work together for 4 days, what fraction of the job is still left?

Competition practiceTime & Work / Pipes
  • A1/4
  • B1/2
  • C1/3
  • D3/4

Step-by-Step Solution

Together per day: 1/24 + 1/12 = 1/8. In 4 days they finish 4/8 = 1/2, so 1/2 remains.
Answer: B) 1/2

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