Car a and car B travel from 600 kilometers apart at the same time. Car a travels 5 kilometers more per hour than car B. after 5 hours, they meet. How much does car B travel per hour

Car a and car B travel from 600 kilometers apart at the same time. Car a travels 5 kilometers more per hour than car B. after 5 hours, they meet. How much does car B travel per hour


600 △ 5 = 120 km
B car per hour: (120-5) △ 2 = 57.5km



A and B start from two places with a distance of 600 kilometers, and they travel in opposite directions. A travels 5 kilometers more per hour than B. after 5 hours, they meet. How many kilometers per hour does B travel


600 △ 5 = 120 (km)
(120-5)÷2
=115÷2
=57.5 (km / h)
A: car B travels 57.5 kilometers per hour
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The distance between a and B is 1500 meters. If a and B travel from two places at the same time, and if they travel from two places at the same time, a can catch up with B in 50 minutes


The speed sum is 1500 △ 10 = 150 m / min
The speed difference is 1500 △ 50 = 30 m / min
A speed (150 + 30) △ 2 = 90 m / min
B speed (150-30) △ 2 = 60m / min



The distance between a and B is 1500 meters. Two people set out from a and B at the same time and meet each other 10 minutes later. If they speed up by 20% and still set out from a and B at the same time, they will meet each other 10 minutes later______ Two seconds meet


The original speed sum of the two: 1500 / 10 = 150 (meters), the speed sum after speed increase: 150 × (1 + 20%) = 180 (meters), the average speed sum per second: 180 / 60 = 3 (meters), the meeting time: 1500 / 3 = 500 (seconds)