Question 1167181
.


OK.


Then  learn from me, please, how the question should be.


It should be in this way :


<pre>
    What is the number of terms in this sequence ?
</pre>


----------------


<U>Solution</U>


<pre>
This sequence is the arithmetic progression with the first term  {{{2/6}}}  and the common difference  {{{1/6}}}


    {{{2/6}}} ,  {{{3/6}}},  {{{4/6}}},  {{{5/6}}}   and so on  till  2 {{{5/6}}}.


There are 5 terms from  {{{2/6}}}  to  1, inclusive.


Then there are 6 terms from  1 {{{1/6}}}  to 2, inclusive.


Then there are 5 terms from  2 {{{1/6}}}  to  2 {{{5/6}}}, inclusive.


Now, to answer the question, you need to add these quantities: 5, 6 and 5.
</pre>

Solved.


--------------


As I see from your post, you never opened Math textbook and never read formulations of Math problems from there.


Please MEMORIZE:


<pre>
    Each Math problem formulation must go with a question,
    similar to as you see in my post.


    It is a neutral and polite form formulating Math problem.


    It is <U>NOT a polite way</U> to complete your post with the words "I need to know . . . "
</pre>