Imran can do a piece of work in 12 days, while Hashim can do the same in 36 days and Rajat in 18 days. If Imran is assisted by Hashim and Rajat respectively on alternate days, then find the number of days in which the work will be finished.

Imran can do a piece of work in 12 days, while Hashim can do the same in 36 days and Rajat in 18 days. If Imran is assisted by Hashim and Rajat respectively on alternate days, then find the number of days in which the work will be finished.

1). 2 days
2). 4 days
3). 6 days
4). 8 days

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