A 30% discount reducesthe price of a commodity by $90. If the discount ... ...

A 30% discount reduces the price of a commodity by $90. If the discount is reduced to 20%, then the price of the commodity will be
(A) $180
(B) ...
(C) ...
(D) ...
(E) ...

*This question is included in Nova Press: Set Q - Percents

 
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A 30% discount reducesthe price of a commodity by $90. If the discount ... ... 
Posted: 12/23/2014 03:52
Why x=300?