Novice2Geek

Add arithmetic operators (plus, minus, times, divide) to make the following expression true: 3 1 3 6 = 8. You can use any parentheses you’d like.

Probability might work the other way too :P

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Pankaj, Rashmi, Sneha and Tarun crossed a lake in a boat that can hold only two persons:

1. The boat can hold two persons on each of three forward trips across the lake and one person on each of two return trips.

2. Pankaj was unable to row when someone else was in the boat with him.

3. Rashmi was unable to row when anyone else except Sneha was in the boat with her.

4. Each person rowed continuously for at least one trip.

Who rowed twice?