Answer:- 18 tours offered in each day.
Explanation:-
Staring time of tours=10 am
Closing time of tours=4 pm
Duration of tours(10 am to 4 pm)=6 hours
Time for each tour=[tex]\frac{1}{3}\ hours[/tex]
Total number of tours offered in a day=[tex]\frac{6}{\frac{1}{3}}=\frac{6\times3}{1}=18[/tex]
Therefore, 18 tours offered in each day.