The book "Guide Reading for Primary School Students" will be sold at a 5% discount from this year. Wang Peng bought a set which is 6 yuan cheaper than the original price. How much is the original price of this set of books?
《小学生导读》一书从今年起一律九五折销售，王鹏买了一套比原价便宜了6元，这套书原价是多少元？
<gadget id="calculator">95 / 100</gadget>
<output>19/20 = around 0.95</output>

<gadget id="calculator">1 - (19/20)</gadget>
<output>1/20 = around 0.05</output>

<gadget id="calculator">6 / (1/20)</gadget>
<output>120</output>

<result>120</result>