Question

The sum of digits of a two-digit number it 13. When the digits are reversed, the number decreases by 27. Find the changed​

Answer 1

Step-by-step explanation:

reversed no. 31

no. 27

the changed no. 31-27 =4

Answer 2

Answer:

Step-by-step explanation:

Let the no on tens place be x

And no on unit place be y

Hence the no formed is 10x+y

From first condition

x+y=13..........1

From second condition

10y+x=10x+y-27

9y-9x=-27

Divide by 9

y-x=-3

x-y=3...........2

Add equation 1 and 2

2x=16

x=8

From equation 2

-y=3-8

y=5

No formed is=85