sum of the digits of a two digit number is 12. the given number exceeds the number obtained by interchanging the digits by 36. find the given number.
Answers
Answer:
one s= x
ten's= 10y
no is =x +10 y
interchanging
one's = y
ten's=10x
no = y + 10x
Step-by-step explanation:
x + 10y=12
x + 10y-(y +10 x )=36
these equation you got the answer
solve it you got the answer
I hope it help you
Answer:
Sum of the digits of a two-digit number is 12. The given number exceeds the number obtained by interchanging the digits by 36. Find the given
number.
The tens digit of the required number be x
and the units digit be y
\huge\underline {Then,}
Then,
x + y = 12 ......... eq. (1)
Required number = (10x + y)
Number obtained on reversing the digits = (10y + x)
(10y + x) - (10x + y) = 18
9y - 9x = 18
x - y = 12 ......... eq. (2)<br>
On adding eq. (1) and eq. (2)
x + y + y - x = 12 +2
2y = 14
y = 2
x = 5
Hence, the required number is 57