Question

the sum of the digits of a two digit number is 9 the number is 6th times the unit digit find the number​

Answer 1

Let the digit on a unit no be x and the digit on tens be y

According to the first condition

x+y=9

According to the second condition

10x + y = 6

Subtracting equations 1 from 2

we get 9x=3

x=3/9

x= 3

Substitute x=3 in equation 1

x+y = 9

3 + y = 9

y = 9-3

y= 6

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