Can anybody help solve this question
A motorboat travels 324km in 6 hours going up stream. It travels 408 km going down stream in the same amount of time.
What is the rate of the boat in Stillwater in km?
What is the rate of the current?

Question

Can anybody help solve this question
A motorboat travels 324km in 6 hours going up stream. It travels 408 km going down stream in the same amount of time.
What is the rate of the boat in Stillwater in km?
What is the rate of the current?

anonymous · Answer

So I'll do my best here...  These always gave me trouble so I understand..

distance = rate times time

so going upstream...  324km = 6hr(rate)
divide 324km by 6hr to clear it on the right side and..

rate = 54km/hr

do the same for downstream and downstream rate is...

68km/hr

the difference of these rates is 14km/hr

so the river must be flowing at 7km/hr

and the boat is going 61km/hr in still water

hope this helps

pratyush5 · Answer

Let speed of boat in stillwater = x
Let speed of current= y 

We know that time = distance divided by speed.

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