1.

The price of an article is decreased by 10%. To restore it to its former value, the new price must be increased by :

A. <table><tr><td rowspan="2">9</td><td style="border-bottom:1px solid #000000;vertical-align:bottom;padding-bottom:2px;"><center>1</center></td><td rowspan="2">%</td></tr><tr><td align="center">11</td></tr></table>
B. 10%
C. 11%
D. <table><tr><td rowspan="2">11</td><td style="border-bottom:1px solid #000000;vertical-align:bottom;padding-bottom:2px;"><center>1</center></td><td rowspan="2">%</td></tr><tr><td align="center">9</td></tr></table>
Answer» E.


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