There are P point where is upstream of the river and Q point where is downstream.
There is a ship which repeats going back and forth between PQ and this ship stops at P and Q for 18 minutes, respectively.
Taro walked along the riverside way from Q to P.
When Taro left Q, the ship left P at the same time.
Taro passed by the ship which goes to Q from P on the way twice.
Passing by the 2nd time was 1 hour 48 minutes after passing by the 1st time.
3 hours after leaving, Taro arrived at P and the ship arrived at Q at the same.
Answer the following questions.
(1) How many minutes did it take for Taro to pass by the ship which goes to Q from P at the 1st time after Taro leaves Q?
(2) Find the ratio of speed when the ship goes up the river and goes down the river.
(3) The speed of the ship without a flow is 132 m/m.
Find the speed of the flow of the river per minute.
Moreover, find the distance between PQ.
There is a ship which repeats going back and forth between PQ and this ship stops at P and Q for 18 minutes, respectively.
Taro walked along the riverside way from Q to P.
When Taro left Q, the ship left P at the same time.
Taro passed by the ship which goes to Q from P on the way twice.
Passing by the 2nd time was 1 hour 48 minutes after passing by the 1st time.
3 hours after leaving, Taro arrived at P and the ship arrived at Q at the same.
Answer the following questions.
(1) How many minutes did it take for Taro to pass by the ship which goes to Q from P at the 1st time after Taro leaves Q?
(2) Find the ratio of speed when the ship goes up the river and goes down the river.
(3) The speed of the ship without a flow is 132 m/m.
Find the speed of the flow of the river per minute.
Moreover, find the distance between PQ.
Answer
(1) 36 minutes
(2) 5：6
(3) River 12m/m
Distance between PQ 6480 m
(2) 5：6
(3) River 12m/m
Distance between PQ 6480 m
