Two motor ships left the same pier at the same time in the same direction. After 30 minutes
| March 17, 2021 | education
Two motor ships left the same pier at the same time in the same direction. After 30 minutes, the distance between them was 3 km. Find the speed of the third motor ship, if the speed of the first is less than the speed of the second and is equal to 250 m / min.
1.Let’s find the distance covered by the first motor ship:
250 x 30 = 7500 (m).
2.Let’s find the distance covered by the second motor ship:
7500 + 3000 = 10500 (m).
3.Calculate the speed of the second motor ship:
10500/30 = 350 (m / min).
Answer: the speed of the second motor ship is 350 m / min.
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