Question

There are only 3 possible ways a pair of lines can be arranged in a Cartesian plane.

The sum of the digits of a two-digit number is 9. If 27 is added to it, the digits of the number get reversed. The number is _________

Answer 1

Answer:

The number is 36. The possibilities are: 18, 27, 36, 45, 54, 63, 72, & 81. A quick addition of 27 to each possiblbiliy gives 18+27= 45, 27+27=54, 36+27=63 and 63 is the reverse of 36.