David W. answered 01/15/19
Experienced Prof
Imagine a number with digits a b c
where c = ones digit
b = tens digit
a = hundreds digit
"my ones digit is 2x4. That means that c=8
The number is ab8
"The sum of my tens and ones digit is 12"
b + c = 12 or b + 8 = 12
b = 4
The number is a48
Now, if the number is between 200 and 300, the hundreds digit (the a) must e 2.
The number is: 248