Question

a number consists of two digits whose sum is 12.if 18 is added to the numbers, the digits are reversed. find the numbers​

Answer 1

Answer:

75

Step-by-step explanation:

Let the two digits number be 10y+x.

where x and y are two digits

When number is reversed it becomes 10x+y

Sum of two digits =x+y

Then, the equations formed are

10y+x−18=10x+y

y−x=2        

Also, x+y=12    

Adding equation (1) and (2), we get

x=5 and y=7

Hence, the number is 75.