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Distance

Kevin and Daniel were rowing their boat along the River Trent. In the morning they managed to row upstream at an average speed of 2 miles per hour. They then stopped for a spot of lunch and a nice rest. In the afternoon, the pace was a little easier as they were now rowing downstream, and managed an average speed of 4 miles an hour. The morning trip took them 3 hours longer than the afternoon. How far did they row upstream? Show Answer

Probability

If you roll two normal 6-sided dice, the probability of getting a total of 7 is 1/6. What will be the probability if the dice is 7-sided or 8-sided? Show Answer