Answers

2015-01-31T18:36:24+05:30
Let the tens digit be x and unit digit be y
then
10x+y-10y-x=36
9x-9y=36
x-y=4 -----------------------------------------------------------1
now
x=2y
now putting this value of x in 1
2y-y=4
y=4
therefor x=8
then number is 84
now

sum of digits=12 and difference of digits is 4

12-4=8------------------------------------------------------------ans




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