n multiplied twice and subtracted 3 from the product.
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let the number be 10x+y, where 0<x,y<10.The condition says, [3*(10x+y)] -2 = 10y+xsimplifying will give us the equation as 29x=7y+2now max possible number for y is 9 and max possible value for R.H.S is 65.therefore to be in range with the R.H.S, the max possible value for x is 2.Thus, x can be either 1 or 2. If x=1, LHS=29 and no suitable value can be found for y.If x=2, LHS=58 and y can be 8 to satisfy the equation.Thus x=2 and y=8.So the number is 28.Verification:(28*3)-2=82
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