if 5 % more is gained by selling an article for rs. 350 than by selling it for rs. 320, the cost of the article is Choose the correct choice from the following answers.
A) 289	B) 231	C) 200	D) 288	E) 600
<gadget id="calculator">350 - 320</gadget>
<output>30</output>

<gadget id="calculator">5 / 100</gadget>
<output>1/20 = around 0.05</output>

<gadget id="calculator">30 / (1/20)</gadget>
<output>600</output>

<result>E</result>
if 5 % more is gained by selling an article for rs. 350 than by selling it for rs. 320, the cost of the article is
divide(subtract(350, 320), divide(5, const_100))
"explanation : let c . p . be rs . x . then , 5 % of x = 350 - 320 = 30 x / 20 = 30 = > x = 600 answer : e"