Question 255254
13/11 = 1+2
26/11 = 2+4
39/11 = 3+6
52/11 = 4+8
65/11 = 5+10
78/11 = 7+1 *****************************8


looks like the number is 6


6*13 = 78


78/11 = 7 + a remainder of 1.


7*11 = 77 + 1 = 78