plz solve it ........
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let two digit number =10x+y
x+y =9 ....(1)
ATQ
9(10x+y) =2(10y+x)
90x+9y = 20y+2x
88x-11y =0
or
8x-y =0 ...(2)
adding 1 &2 we get
9x= 9
x =1
y = 9-1 =8
number = 10(1)+8 = 18
x+y =9 ....(1)
ATQ
9(10x+y) =2(10y+x)
90x+9y = 20y+2x
88x-11y =0
or
8x-y =0 ...(2)
adding 1 &2 we get
9x= 9
x =1
y = 9-1 =8
number = 10(1)+8 = 18
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