The price of a suit has increased by 10% and decreased by 10%. Now the price is 198 yuan. What's the original price?
Suppose: the original price is x yuan
(X+0.1X)-0.1(X+0.1X)=198
1.1X-0.11X=198
0.99X=198
X=200
A: the original price is 200 yuan
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