Question

please ans fast !!!!!!!!

Answer 1

2.   let it be x
                  10-x
original no.=10[10-x]+x
                    100-10x+x
                    100-9x
reverse no.=10[x]+10-x
                    10x-x+10
                    9x+10
new no.=100-9x-{9x+10}
          36=     100-18x-10
       36=90-18x
90+x=36divide -18  
90+x=-2
x=-92