Question

a number consist of two digits whose sum is 8 If 18 is added to the number it digit gets interchange find the number​

Answer 1

Answer:

let the number be 10x+y

x+y=8

and... 10x+y+18=10y+x

9x-9y=-18

x-y=-2

by solving both equation

we get x=3 And y= 5

so the number is 35

Answer 2

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