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A cycling team training, all members were in 35 km 1:00 pace. No. 1, in order to advance the speed o

Lian Sasa retention pond2010-02-18 19:10:16 +0000 #1
1, after marching 10 kilometers rotor, the speed is still 45 kilometers short ride back until encounter with the other players
Love Love Mint Boeing2010-02-18 19:22:28 +0000 #2
Solution: set after x hours after the

35x +45 (x-10 ÷ 45) = 10

35x +45 x-10 = 10

80x = 20

x = 0.25

0.25 hours = 15 minutes

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