The motor boat, moving at a speed of 15 km / h, covered 210 km on the first day. on the second day
| January 11, 2021 | education
The motor boat, moving at a speed of 15 km / h, covered 210 km on the first day. on the second day, having increased the speed by 3 km / h, the boat covered 306 km, how many hours was the motor boat on the way?
Let’s determine how much time it took this boat to cover the distance of 210 km:
210: 15 = 14.
Let us determine what value the spoon speed was equal to on the second day, if, according to the condition, it increased by 3 km / h:
15 + 3 = 18.
Let’s determine how much time it took this boat to cover the distance of 306 km:
306: 18 = 17.
Let’s determine what value will be equal to the total time that this boat was on the way:
14 + 17 = 31.
Answer: She was on the road for 31 hours.
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