A boat can go at a speed of 20 km in one hour. How far would the boat go in three and a half hours?

Q. A boat can go at a speed of 20 km in one hour. How much time will it take to go 85 km? [3 Marks]

Q. Which Boat Gets How Much?
In one trip the log boat brings about 20 kg of fish. But other types of boats bring a bigger catch as given in the table. The table also shows the speed of each type of boat, which is how far each boat goes in one hour. Look at the table and calculate ―
(a) About how much fish in all will each type of boat bring in seven trips?
(b) About how far can a motor boat go in six hours?
(c) If a long tail boat has to travel 60 km how long will it take?

Type of boat	Catch of fish in one trip (in kg)	Speed of the boat (how far it goes in one hour)
Log boat Long tail boat Motor boat Machine boat	20 600 800 6000	4 km per hour 12 km per hour 20 km per hour 22 km per hour

Q. A boat can go $72km$ downstream in $4$ hours and $36km$ upstream in $3$ hours. Calculate the speed of boat in still water.

Q. A boat can go $65km$ upstream in $5$ hours and $69km$ downstream in $3$ hours. Find the speed of boat in still water.

Q. A boat takes 4 hours to go 44 km downstream and it can go 20 km upstream in the same time. Find the speed of the stream and that of the boat in still water.