Afisherman rows his boat toward a town 17 miles upstream. each day he rows the boat 6 miles upstream, and each night the boat drifts back 2 miles. if this pattern continues on which day will he reach the town?

The fisherman reaches the town on 4th day.

SOLUTION:

Given, A fisherman rows his boat toward a town 17 miles upstream.  

Each day he rows the boat 6 miles upstream, and each night the boat drifts back 2 miles.  

We have to find If this pattern continues on which day will he reach the town?

Now, after 1st day distance between him and town = 17 – 6 = 11 miles

And after that night, distance = 11 + 2 = 13 miles

Now, again after 2nd day, distance = 13 – 6 = 7 miles  

And after that night, distance = 7 + 2 = 9 miles  

Now, again after 3rd day, distance = 9 – 6 = 3 miles

And after the night, distance = 3 + 2 = 5 miles

Now, again after 4th day, distance = 5 – 6 miles = - 1 miles  

Here, - 1 miles means that he already reached the town.

Hence, the fisherman reaches the town on 4th day

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75%

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