Nile and Bob both were traveling were 2 hours
<em><u>Solution:</u></em>
<em><u>The formula for time is given by:</u></em>

Given that,
<em><u>Niles’ sailboat traveled 16 miles at a speed of 8 mph</u></em>
Distance = 16 miles
Speed = 8 mph
Therefore, time taken is given as:

Thus, Nile takes 2 hours to travel
<em><u>Bob’s motorboat traveled 26 miles at a speed of 13 mph</u></em>
Distance = 26 miles
Speed = 13 mph
Therefore, time taken is given as:

Thus, Bob takes 2 hours to travel