The sum of two digit number and the number formed by interchanging its digits is 88 if the sum of the sum and difference of the digits of the number is 8 what is the number
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Answer:
let the number be X Y .
Step-by-step explanation:
the number will be 10x+y
the number after interchanging will be 10y+X
the of them is 10x+y+10y+x=88
11x+11y=88,
X+y=8 .
the difference of digits is 8 . solve two equation . we get x=8.y=0
therefore the number is 80
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