A car from a to B, plan to arrive in 5 hours, the actual 4 hours to B. the actual speed is higher than the plan______ %

A car from a to B, plan to arrive in 5 hours, the actual 4 hours to B. the actual speed is higher than the plan______ %

(14-15) △ 15, = 120 × 5, = 25%; answer: the actual speed is 25% higher than the plan

A car, from a to B driving 10 hours, from b back to a driving 8 hours. Speed increased by several percent?
Please explain the next process, good score

It is assumed that the distance between a and B is 1000 km
10 / 1000 per hour = 100 km
Come back at 8 / 1000 = 125 km / h
(125-100)%=25%
Thus, the speed can be increased by 25%

It took five hours for a car to go from place a to place B, but the speed of the car increased by 20% when it returned, so it was less used___ Hours

Suppose the speed of the car is x, then the distance between a and B is 5x, and the return time is: 5x (1 + 20%) x = 416, so less 5-416 = 56

A car from a to B, an average of 75 kilometers per hour, 3 hours to reach,
How many hours can I return to Jiadi

Set X hours to return
1：（1+20%）=x：3
x=1x3÷120%
x=2.5
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