Question 1132317
let x represent the salary.


1/3 * x is used for food.


x - 1/3 * x = 3/3 * x - 1/3 * x = 2/3 * x.


2/3 * x remains.


1/4 * 2/3 * x = 2/12 * x = 1/6 * x is used for saving.


2/3 * x - 1/6 * x = 4/6 * x - 1/6 * x = 3/6 * x = 1/2 * x.


1/2 * x remains.


1/2 * 1/2 * x = 1/4 * x is used for rent.


1/2 * x - 1/4 * x = 2/4 * x - 1/4 * x = 1/4 * x.


1/4 * x remains.


that's your solution.


to summarize:


1/3 * x is used for food.
1/6 * x is used for saving.
1/4 * x is used for rent.
1/4 * x remains.


1/3 * x + 1/6 * x + 1/4 * x + 1/4 * x equals 4/12 * x + 2/12 * x + 3/12 * x + 3/12 * x which is equal to 12/12 * x which is equal to x.


all salary is accounted for.