The sum of the digits of a two digit number is 9. If 27 is added to it, the digits of the number get reversed. The number is
Answers
Answer:
Let the digits in the tens place be x and digit in the ones place be y
Sum of the digit is 9
Therefore, we have
x+y=9
...(1)
The two digit number is of the form 10x+y
∴We have
10x+y+27
=10y+x
⇒9x−9y=−27
⇒x−y=−3 ...(2)
On subtracting equation (2) from (1) and eliminating y, we get
2x=6
⇒x=3
On substituting value of x in equation (1), we get x+y=9
3+y=9y=6
So, 10x+y
= 10×3+6=36
Therefore, the two digit number is 36.
Step-by-step explanation:
hope it's helpful to you
Answer:
let us assume the number as x
sum of digits of number =9
now let us consider the digits as y and z
now y+z=9
now yz(as digits of x without multiplication)+27=zy
let us try trail and error
0+9=9 and 9+27=36
1+8=9 and 18+27=45
2+7=9and 27+27=54
3+6=9 and 36+27=63
so the number 36
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