Question

The ten digit of a number is four times its ones digit if 27 is subtracted from the number digits of the difference obtained are reverse of those of number find the number

Answer 1

two equations are 5a-2b=0 nd a-b=3

Now, 5a-2a-2b+2b=0-6

or, 3a=-6

or, a=-2

Nd b=-2-3=-5

Thus, the number is -20-5 =-25