The pages of a report are numbered consecutively from 1 to 6. If the sum of the page numbers up to and including page number x of the report is equal to one less than the sum of the page numbers following page number x, then x =  Choose the correct choice from the following options.
A) 4	B) 5	C) 6	D) 3	E) 2
sum of the first few numbers =1+2+3+4= 
<gadget id="calculator">1+2+3+4</gadget>
<output>10</output>
10   sum of the last few= 5 +6= 
<gadget id="calculator">5 +6</gadget>
<output>11</output>
11 page no.4 answer .4
<result>A</result>
The pages of a report are numbered consecutively from 1 to 6. If the sum of the page numbers up to and including page number x of the report is equal to one less than the sum of the page numbers following page number x, then x =