Question

A number consists of two digits sum 12 if 18 is added to the number its digit get reversed ​

Answer 1

Answer:

57

Step-by-step explanation:

The solution can be obtained by letting x be the ‘tens digit’, and y be the unit digit, so that the original number is 10x+y.

Then 10x+y+18=10y+x,

because the digits are reversed. This simplifies to

9x+18=9y, or x+2=y.

Since the digits add up to 12,

x+y=12.

Substituting for y yields

x+2=12-x,

which simplifies to x=5.

Then y=7,

so the original number is 57. 57+18 = 75.

Answer 2

Step-by-step explanation:

that's your answer bro