# The question is in the chapter playing with numbers So please help me to do this sum The sum of the digit of a two digit number is 9 the number is 6 times the unit digit . Find the number

1
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and tens digit be y

so the number is 10y +x

now

given in question that x+y =9

10y +x =6x 10y=5x x=2y

now y =3

x= 6

number is 36

verify sum of digit 9

36 =6x

answer =36