If the yuan is worth 6.58 to a us$, what would the price to a us$ be if the yuan changed to 6.25

The correct question is

The local currency it gives is a total of 275 Yuan. If the yuan is worth 6.58 to a US$, what would the price to a US$ be if the yuan changed to 6.25
The options are A)$2.21 B)$2.50 C)$13.31 D)$41.79 E)$44.00

we know that 

at the current exchange rate give (6.58)
if 1 usd> 6.58 yuan
X usd> 275 yuan
X=275/6.58> X=41.79 usd

at the current exchange rate give (6.25)
if 1 usd> 6.25 yuan
X usd> 275 yuan
X=275/6.25> X=44 usd

so

the change in price in US$ would be [44-41.79]=US$2.21

the answer is the option 
A)$2.21

Ithink this answer would be c cause i seen this before

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