Question

2
The ones digit of a 2-digit number is two times the tens digit and the sum of digits is 9. Find the
number​

Answer 1

Step-by-step explanation:

let,

tens digit no. be , x

therefore,

One digit no.=2x

sum of two digits no=9

we get,

x +2x=9

x(1+2)= 9

x × 3=9

x=9/3

x=3

since,

tens digit no=x

therefore, tens digit no =3

And,

ones digit no=2×3

=6

=> The number =36