Question

Tens digit of a two digit number is twice it's units digit. If the sum of digit is 12 ,find the number

Answer 1

84 is the answer for this question

Answer 2

Let the unit digit be = x
and, tens digit be = 2x

Then,
sum of digits = x + 2x = 12
3x = 12
X = 4

Then the required no. is 84

hope it helps
#jerri