Question 390239: A two digit number is 4 times the sum of its digits. If 27 is added to that number its digits are reversed. Find that number. Answer by josmiceli(19441) (Show Source):
You can put this solution on YOUR website! Let the 2 digit number =
where and are the digits
given:
(1)
(2)
Note that the number with the digits reversed is
--------------------------
From (1):
From (2):
Using substitution:
and
The number is 36
check answer:
(1)
OK
(2)
OK
