James has 300 roses, and he decided to make booke with 50 flowers in each. After that he packed these bookes and wanted to sent some friends. He he decide to arrange the bookes in every possible combination and moved just one booke every 1/4 minute, how long would it taken by him ?
Options:  A) 200 minutes  B) 180 minutes  C) 250 minutes  D) 160 minutes  E) 300 minutes
Explanation:   No of bookes = 300/50= 
<gadget id="calculator">300/50</gadget>
<output>6</output>
6   Clearly, number of ways of arranging 6 bookes= 6 ! = 6 x 5 x 4 x 3 x 2 x 1 = 720.   So, total time taken = 720*1/4= 
<gadget id="calculator">720*1/4</gadget>
<output>180</output>
180 minutes   Answer: 180 minutes
<result>B</result>
James has 300 roses, and he decided to make booke with 50 flowers in each. After that he packed these bookes and wanted to sent some friends. He he decide to arrange the bookes in every possible combination and moved just one booke every 1/4 minute, how long would it taken by him ?