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## The speed of boat in still water is 15km/hr if needs 4 more his to travel 63 km against the current of a river than it needs to travel down

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The speed of boat in still water is 15km/hr if needs 4 more his to travel 63 km against the current of a river than it needs to travel down the river determine the system of equation

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Mathematics
7 months
2021-07-18T22:55:39+00:00
2021-07-18T22:55:39+00:00 1 Answers
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## Answers ( )

Answer:Step-by-step explanation:The systems of equations are

Let us assume the rate of the current be c

Now actual speed against the current is (15 – c)

And, the actual speed with the current is (15 + c)

Here we applied the time formula i.e. distance by speed

Also the upstream time – downstream time = 4

Now the equations are