To get the final price of a chair we have to find 40% of 210, subtract it from 210. Then find 140% of it and it will be the result. Lets do this 40%=0.4 0.4 210=84$
Now we have to calculate increased price, so 100%+40%=140% 140%=1.4 1.4 84=117.6$ - its the final price of a chair.
The final price of the chair after a 40% discount followed by a 40% increase is $176.40.
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