the charge for a single room at hotel p is 30 percent less than the charge for a single room at hotel r and 10 percent less than the charge for a single room at hotel g. the charge for a single room at hotel r is what percent greater than the charge for a single room at hotel g?	Choices:	A) 28 %	B) 20 %	C) 40 %	D) 50 %	E) 150 %
<gadget id="calculator">100 - 30</gadget>
<output>70</output>

<gadget id="calculator">100 - 10</gadget>
<output>90</output>

<gadget id="calculator">70 / 90</gadget>
<output>7/9 = around 0.777778</output>

<gadget id="calculator">(7/9) * 100</gadget>
<output>700/9 = around 77.777778</output>

<gadget id="calculator">100 - (700/9)</gadget>
<output>200/9 = around 22.222222</output>

<gadget id="calculator">(200/9) / (700/9)</gadget>
<output>2/7 = around 0.285714</output>

<gadget id="calculator">(2/7) * 100</gadget>
<output>200/7 = around 28.571429</output>

<result>A</result>
the charge for a single room at hotel p is 30 percent less than the charge for a single room at hotel r and 10 percent less than the charge for a single room at hotel g. the charge for a single room at hotel r is what percent greater than the charge for a single room at hotel g?
multiply(divide(subtract(const_100, multiply(divide(subtract(const_100, 30), subtract(const_100, 10)), const_100)), multiply(divide(subtract(const_100, 30), subtract(const_100, 10)), const_100)), const_100)
"let rate in r = 100 x then p = 70 x g = 100 y p = 90 y thus 70 x = 90 y or x = 1.28 y ans r = 128 y so increase = 28 % answer : a"