How many gold coins do you have left for the rest of your journey ?

Question

You're given 50 gold coins before your big journey,
but you decide to leave 25 of them at home before leaving.
On the first day you spend 20% the gold you brought on food and
you give 10 of the remaining coins to a beggar who has nothing.
The king now claims 20% of all gold in the country,
which everyone pays in person instantly.
the next day the beggar, who didn't buy a thing,
gives you all his gold back,
because he felt guilty for taking it.

How many gold coins do you have
left for the rest of your journey ?

Answer 1

You have 11 gold coins left

You have a total of 50 gold coins to begin with. You leave 25 at home and bring 25. You then spend 20% on food, which is 5 coins, you now have 20 left. You then give 10 to a beggar, this leaves you with 10. The tax takes away another 20% of your total gold (including the gold at home, but the tax needs to be paid in person). That's a total of 7 coins you need to pay in tax. This leaves you with 3 coins. You then get gold back from the beggar, who also paid 20% tax, so that's 8 coins you get from him. What you have left for your journey is 3 + 8 = 11 coins.

Answer 2

FOOD 5
BEGGAR 10
BALANCE 10
TAX 2
NET BAL 8+10(RETD BY BEGGAR0 IE 18
ANS=18