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Nikhil and Om together can lay a footpath in 24 days. They work together for 16 days, then Om leaves and Nikhil completes the rest in 20 more days. In how many days could Om do the whole job alone?

Competition practiceTime & Work / Pipes
  • A40 days
  • B60 days
  • C30 days
  • D48 days

Step-by-Step Solution

In 16 days they finish 16/24 = 2/3. Nikhil does the remaining 1/3 in 20 days, so Nikhil alone needs 60 days. Om's rate = 1/24 − 1/60 = 3/120 = 1/40, so Om alone takes 40 days.
Answer: A) 40 days

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