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Mathematical score equation of the second semester of the second day of junior high school
First of all, suppose that the original speed is V, and now the speed after speed increase is1.5v; ;

According to the original speed of time t1= 360/v;

At the current speed, the required time T2 = 360/1.5v;

According to the known conditions, it is now 2 hours shorter than before;

Therefore, t1-T2 = 360/v-360/1.5v = 2, so it can be solved.

V = 60km km/h