fozzzy wrote:
If x, y, and z are three-digit positive integers and if x = y + z, is the hundreds digit of x equal to the sum of the hundreds digits of y and z ?
(1) The tens digit of x is equal to the sum of the tens digits of y and z.
(2) The units digit of x is equal to the sum of the units digits of y and z.
Is there an alternative approach for this problem?
The question basically asks whether there is a carry over 1 from the tens place to the hundreds place.
Consider the following examples:
(i)
123
234
...
