Question

Sum of a digit of a 2 digits is 9. When we inter change the digits it is found that resulting new number is greater than the orginal number bu 27. What os the two digit number​

Answer 1

Answer:

just wait 2 minutes process is long

Answer 2

Answer:

Let,

once digit =y

Tense digit = x

Original number = 10x+y

Interchanged number = 10y+x

It is given that sum of two digit = 9

Means

x + y = 9

x= 9-y.......(I) equation

10y +x = 10x+ y +27

10y+x - 10x +y = 27

putting value of x from equation (i)

10y+9-y - 10(9-y)+y = 27

10y -y +9 -90+10y +y = 27

9y