opeyemi earns 50000 monthly she spends one fifth on food stuff and use1/2 of the reminder on rent and transportation if 1/4 of the rest is spent on clothing materials and save 1/2 of the balance how much opeyemi save monthly

We all know math is important, but proper English is importanter.

amount spent on food = (1/5)(50000) = 10000
so amount remaining = 40000
amount spent on rent and transportation = (1/2)(40000) = 20000
so amount remaining = 20000
amount spent on clothing etc = (1/4)(20000) = 5000
so amount left = 15000
amount saved = (1/2)(15000) = 7500