The price of sugar is increased by 9%. By how much percent should a home maker reduce her consumption of sugar to have no extra expenditure?	Choose the correct choice from the following answers:
A) (700/107) %
B) (107/100) %
C) (900/109)%
D) (7/100)%
E) (100/700)%
Old price = $100 (assume);   Old consumption = 1 kg (assume).   New price = $109.   We want the spendings to remain at $100.   (New consumption)*109 = 100 --&gt; (New consumption) = 100/109 kg.   Percent decrease = Change/Original *100 = (1 - 100/109)/1*100 = 900/109%.   Answer: (900/109)%.
<result>C</result>
The price of sugar is increased by 9%. By how much percent should a home maker reduce her consumption of sugar to have no extra expenditure?