10 boxes with money

Mr. Zhang a long time collecting money for a new car, all the currency he kept in cardboard boxes.
And then came the long-awaited moment of buying a new car in one of the auto District Zhengzhou.
After selecting the car, he asked the seller whether they accept the cash, the response was positive.
Surprise workers dealership was very great when Mr. Zhang has made 10 boxes with money.
According to estimates of the amount of the cashier in boxes of 25 000 US dollars in local currency.