Question 992143
.
John spends   0.15x + 0.2x + 0.5x.


John saves   x - (0.15x + 0.2x + 0.5x).


The equation is


x - (0.15x + 0.2x + 0.5x) = 1245.


Simplify and solve it:


x - 0.85x = 1245,


0.15x = 1245,


x = {{{1245/0.15}}} = 8300.


<U>Answer</U>. &nbsp;John's salary is &nbsp;Rs8300.