Q. A group of workers was put on a job. From the second day onwards, one worker was withdrawn each day. The job was finished when the last worker was withdrawn. Had no worker been withdrawn at any stage, the group would have finished the job in two-thirds of the time. How many workers were there in the group?

• 3 workers would have completed work in 2 days.
  3+2+1 workers completed work in 3 days.
  
  so initially 3 workers.
• 13 years agoHelpfull: Yes(3) No(2)