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There are 360 electric vehicles and bicycles in total. Bicycles are four times as many as electric vehicles. How many bicycles are there It's a math problem
360 ÷ (4 + 1) = 72 vehicles
72 × 4 = 288 vehicles
A: there are 288 bicycles
The distance between a and B is 360 km. A car starts from a place and arrives at B place in six hours. When it returns, its speed decreases by 15 km. How long does it take for it to go back?
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360÷（360÷6-15）
=360÷（60-15）
=360÷45
=8 hours
It takes eight hours to return
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A total of 360 kilometers from a to B, a car from a to B took 9 hours, the speed of return is 20 kilometers more than the speed of go, how much less
It takes 9 hours for a car to go from place a to place B, and the speed of return is 20 kilometers more than that of return. How many hours does it take for a car to go back and forth?
From a to B, travel per hour: 360 △ 9 = 40 km
When returning, 40 + 20 = 60 km per hour
Return time: 360 △ 60 = 6 hours
Round trip sharing: 6 + 9 = 15 hours
The distance between a and B is 360 kilometers. A car drives from a to B at 60 kilometers per hour. It takes 4 hours to get the average speed of the car
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360×2÷（360÷60+4）
=720÷10
=72 (km / h)
A: the average speed of the car is 72 kilometers per hour
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