3 - A governmental employee gets per month:

L.E 900 as basic salary (of which 100 special increment)

L.E 350 as work nature allowance

L.E 600 as representation allowance

L.E 10 as social increment

L.E 50 as transportation allowance

L.E 60 as special increment (not added to basic salary)

So if you learn that he pays insurance premium of L.E 150 per month on his life to his minor son and also pays Social insurance L.E 153 per month.

Required: to calculate tax base per month