Math, asked by smitapandey784, 10 months ago

the sum of a digit of a 2digit number is 9. if the digit of a number reversed,the new number is decreased by 9. find the number.​

Answers

Answered by OmSargam
1

Step-by-step explanation:

Let one's digit = x

And, ten's digit = y

Therefore, number is 10y+x.

According to the question,

x+y=9 ....(1)

Also,

10y+x+27=10x+y

x−y=3 ......(2)

Solving equation 1 & 2, we get,

x=6 and y=3.

Hence, the original number is 10y+x=36.

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