## Puzzle of the day: 144

**4 people take different time to cross the bridge and only 2 at a time can cross it, and move at the speed of slower person. They need to use a torch to cross the bridge. There is only one torch with them. Time taken by them is given below**

**A- 1 min**

**B- 2 min**

**C-5 min**

**D-8 min**

**Find the minimum time taken by them to cross it. **

**16 min****17 min****15 min****18 min**

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