N is a two digit no. such that its product when added to their sum equals to N.The unit digit of N would be?
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let N be x and y
so the numbers would be 10x+y (10x because x was at tens place )
ATQ,
N = xy +x+y
so as N=10x+y
10x+y = xy + x + y
10x = xy + x + y-y
10 = (xy + x)/x
10 = y+1
y = 10 - 1
y = 9
as the question was to find the unit number the unit number is 9.
if helpful pls mark my answer as the brainiest answer .....
so the numbers would be 10x+y (10x because x was at tens place )
ATQ,
N = xy +x+y
so as N=10x+y
10x+y = xy + x + y
10x = xy + x + y-y
10 = (xy + x)/x
10 = y+1
y = 10 - 1
y = 9
as the question was to find the unit number the unit number is 9.
if helpful pls mark my answer as the brainiest answer .....
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