japanese AND non-japanese peeps help me!? i need help on a math problem!!!!!!!!!!!!!!!!!!!!!?

Question

i'm gonna do my best to translate this japanese problem into english.... if you're japanese, plz skip the english version and solve the japanese version.

There is 800grams of 10% acid water. You want to make some of the acid water evaporate (boil) and make it 16%. How many grams of water would you need to evaporate (boil)?

japanese peeps:
１０％の食塩水が８００ｇある。この食塩水を熱し水を蒸発させて、１６％の食塩水にしたい。方程式を作れ。方程式を解いて、何ｇの水を蒸発させればよいか求めよ。。。。
お願いします！ｗ

なんかおかしくなっちゃったｗ
つづき：この食塩水を熱し水を蒸発させて、１６％の食塩水にしたい。何ｇ蒸発させればよいか求めよ。

い。
何ｇの水を蒸発させればよいか
求めよ

Answer 1

If you have 800g of 10% acid water, then you have 720g water and 80g acid.
To have a 16% solution, call the total mass of the solution x.
Then 16% x is 80g.
(.16)x=80g
x=(80/.16)g=500g
The total solution is 500g; 80g acid and 420g water,
so you need to evaporate 300g of water.
Anmari muzukashikunai deshoo.

Answer 2

maximum stupid factor factor i ever did grew to become into marry a eastern *****! I even have spent sufficient money to purchase an house on medications in final 4 years to shelter rigidity of having to work out her daily.

Answer 3

800g of water @10% acid =80g of acid water.
so you want to make that 80ml in to 16%.
so if 80ml is 16% then 1% must be 5ml.
so 100% must be 500ml.
so to get to 500ml you need to get rid of 300ml.
so you need to boil off 300ml.

Answer 4

I'm Japanese and I can't read the peeps section. Not that it matters, really since I don't understand the question. I'm just not getting it. Sorry, bro!

Answer 5

Are you implying that because Japanese people are good in math, that they can all break out their abacuses and figure out your problem? Well, surprising news, not all Japanese people are good in math (myself included)! Thanks for the generalization as I run out to a sushi bar in my kimono and zori.