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Motorcycles and trucks are facing each other. After 1.5 hours, they meet at the midpoint of 9 meters. The speed of motorcycles and trucks is 1.5 times that of trucks, less than 2 meters. Find the distance between the two places
Suppose the speed of the motorcycle is (1.5x-2) m / s. suppose that the speed of the motorcycle is greater than that of the truck, because the distance between the meeting point and the midpoint is 9 meters, the motorcycle travels 18 meters more than the truck. The distance of the motorcycle is 1.5 (1.5x-2), and the distance of the truck is 1.5x.1.5 (1.5x-2) - 1.5x = 18
The speed of a car is 90% of that of a motorcycle. Two cars drive from two places at the same time. They meet at a distance of 8km from the midpoint of the two places to find the distance between the two places
90%=9:10
8 × 2 ÷ [10 / (10 + 9) - 9 / (10 + 9)] = 304 km
A: the distance is 304 km
The speed ratio of car a and car B is 4:7. At the same time, they leave relatively and meet at 15km away from the midpoint. How many km is the distance between the two places?
It takes the same time for Party A and Party B to meet, and the speed ratio is equal to the distance ratio, which is also 4:7
The distance a takes accounts for 4 / (4 + 7) = 4 / 11 of the total distance between the two places
15 km is equivalent to 1 / 2-4 / 11 = 11 / 22-8 / 22 = 3 / 22 of the total distance between the two places
The distance between the two places is 15 (3 / 22) = 15 × 22 / 3 = 110 km
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