Question

he sum of two digit number is 13 if 27 is added to the number the digits are interchanged what is the number

Answer 1

Step-by-step explanation:

x+y=13 ------(1)

xy+27=yx ----(2)

10x+y+27=10y+x

9x+27=9y

x+3=y -----(3)

adding (1) and (2)

2x=10

y=13-5=8

therefore the number is 58