Question 887979
What are the possibilities given that the ones place is 3x the tens?
13
26
39
Which of the three, when 36 is added, reverses its digits?
13 + 36 = 39 ... nope
26 + 36 = 62... woohoo!
39 + 26 = 67... that doesn't work either
.
The only possibility is 26.