20 1 1 The price of Chinese dollars is 200 dollars, which means that now 1 dollars are converted into 6 yuan RMB.
Last year, US$ 65,438+0 was exchanged for 6 pounds ... 6 yuan RMB, and the appreciation of RMB against the US dollar was.
( 1/6 - 1/6.6)/( 1/6.6)= 10%
That is, the appreciation of RMB against the US dollar this year 10%. choose one