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Party A and Party B ride bicycles from both places at the same time. Party A travels 15km per hour and Party B 13km per hour. They meet 3km away from the midpoint to find the distance between the two places In fact, I have seen a lot on the Internet, but I don't know how to get the answer, for example, how to get the number, why to calculate this step ~ I give you all my wealth, although only a little
A travels 15-13 km more per hour than B = 2km
.
When meeting, a travels 3 * 2 = 6km more than B
.
The meeting time is 6 / 2 = 3 hours
.
The distance between the two places is (15 + 13) * 3 = 84km
.
A: the distance between the two places is 84km
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The speed of a car is 47 times that of a train. Two cars are running from two places at the same time, and they meet at a distance of 15 kilometers from the midpoint. How many kilometers does the train travel?
The distance of the whole journey: 15 △ 74 + 7-12, = 15 △ 322, = 110 (km), the distance of the train: 110 × 711 = 70 (km). A: at this time, the train runs 70 km
The speed of car a is 75% of that of car B. the two cars are facing each other from A. B. how many kilometers is the distance between A. B and A. B when they meet at 5km from the midpoint?
How to do it
The speed of car a is 75% of that of car B. the speed ratio is 3:4 and the distance ratio is 3:4
Five kilometers from the midpoint, B traveled 10 kilometers more than a
Distance = 10 / (4-3) * (3 + 4) = 70
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