mwakalebele used one third of her salary to pay school fees and a quater of the remaining to buy food.ifshe still remained with sh490000 what was his total salary ?

salary: 1/3, leaving 2/3

food: 1/4 * 2/3 = 1/6, leaving 1/2
so,
1/2 x = 490,000
x = 980,000